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Finding the Fourth Proportional to 936,266.10, 1,404,885.15 and 437,630.10

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Solution

The fourth proportional to 936,266.10, 1,404,885.15 and 437,630.10 is: 656,672.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,266.10 : 1,404,885.15 = 437,630.10 : x
  2. Step 2: Convert to fraction form
    936,266.10/1,404,885.15 = 437,630.10/x
  3. Step 3: Cross multiply
    936,266.10x = 1,404,885.15 × 437,630.10
  4. Step 4: Simplify right side
    936,266.10x = 614,820,028,683.02
  5. Step 5: Solve for x
    x = 614,820,028,683.02/936,266.10
  6. Step 6: Final answer
    x = 656,672.32

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Double scale
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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.