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Finding the Fourth Proportional to 468,140.30, 702,210.45 and 356,165.90

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Solution

The fourth proportional to 468,140.30, 702,210.45 and 356,165.90 is: 534,248.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,140.30 : 702,210.45 = 356,165.90 : x
  2. Step 2: Convert to fraction form
    468,140.30/702,210.45 = 356,165.90/x
  3. Step 3: Cross multiply
    468,140.30x = 702,210.45 × 356,165.90
  4. Step 4: Simplify right side
    468,140.30x = 250,103,416,913.66
  5. Step 5: Solve for x
    x = 250,103,416,913.66/468,140.30
  6. Step 6: Final answer
    x = 534,248.85

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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.