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Finding the Fourth Proportional to 1,093,068,149.10, 1,639,602,223.65 and 987,630,254.70

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Solution

The fourth proportional to 1,093,068,149.10, 1,639,602,223.65 and 987,630,254.70 is: 1,481,445,382.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,093,068,149.10 : 1,639,602,223.65 = 987,630,254.70 : x
  2. Step 2: Convert to fraction form
    1,093,068,149.10/1,639,602,223.65 = 987,630,254.70/x
  3. Step 3: Cross multiply
    1,093,068,149.10x = 1,639,602,223.65 × 987,630,254.70
  4. Step 4: Simplify right side
    1,093,068,149.10x = 1,619,320,761,750,136,064
  5. Step 5: Solve for x
    x = 1,619,320,761,750,136,064/1,093,068,149.10
  6. Step 6: Final answer
    x = 1,481,445,382.05

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.