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Finding the Fourth Proportional to 482,689.60, 723,688.80 and 202,062.40

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Solution

The fourth proportional to 482,689.60, 723,688.80 and 202,062.40 is: 302,948.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,689.60 : 723,688.80 = 202,062.40 : x
  2. Step 2: Convert to fraction form
    482,689.60/723,688.80 = 202,062.40/x
  3. Step 3: Cross multiply
    482,689.60x = 723,688.80 × 202,062.40
  4. Step 4: Simplify right side
    482,689.60x = 146,230,295,781.12
  5. Step 5: Solve for x
    x = 146,230,295,781.12/482,689.60
  6. Step 6: Final answer
    x = 302,948.93

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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.