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Finding the Fourth Proportional to 623,917.20, 934,126.20 and 606,421.20

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Solution

The fourth proportional to 623,917.20, 934,126.20 and 606,421.20 is: 907,931.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,917.20 : 934,126.20 = 606,421.20 : x
  2. Step 2: Convert to fraction form
    623,917.20/934,126.20 = 606,421.20/x
  3. Step 3: Cross multiply
    623,917.20x = 934,126.20 × 606,421.20
  4. Step 4: Simplify right side
    623,917.20x = 566,473,931,155.44
  5. Step 5: Solve for x
    x = 566,473,931,155.44/623,917.20
  6. Step 6: Final answer
    x = 907,931.26

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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.