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Finding the Fourth Proportional to 6,645,689.40, 9,968,534.10 and 1,596,999.90

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Solution

The fourth proportional to 6,645,689.40, 9,968,534.10 and 1,596,999.90 is: 2,395,499.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,645,689.40 : 9,968,534.10 = 1,596,999.90 : x
  2. Step 2: Convert to fraction form
    6,645,689.40/9,968,534.10 = 1,596,999.90/x
  3. Step 3: Cross multiply
    6,645,689.40x = 9,968,534.10 × 1,596,999.90
  4. Step 4: Simplify right side
    6,645,689.40x = 15,919,747,960,846.59
  5. Step 5: Solve for x
    x = 15,919,747,960,846.59/6,645,689.40
  6. Step 6: Final answer
    x = 2,395,499.85

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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.