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Finding the Fourth Proportional to 559,874,636.90, 839,811,955.35 and 519,059,968.10

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Solution

The fourth proportional to 559,874,636.90, 839,811,955.35 and 519,059,968.10 is: 778,589,952.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,874,636.90 : 839,811,955.35 = 519,059,968.10 : x
  2. Step 2: Convert to fraction form
    559,874,636.90/839,811,955.35 = 519,059,968.10/x
  3. Step 3: Cross multiply
    559,874,636.90x = 839,811,955.35 × 519,059,968.10
  4. Step 4: Simplify right side
    559,874,636.90x = 435,912,766,753,969,664
  5. Step 5: Solve for x
    x = 435,912,766,753,969,664/559,874,636.90
  6. Step 6: Final answer
    x = 778,589,952.15

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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.