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Finding the Fourth Proportional to 658,027.87, 908,061.70 and 367,641.65

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Solution

The fourth proportional to 658,027.87, 908,061.70 and 367,641.65 is: 507,336.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,027.87 : 908,061.70 = 367,641.65 : x
  2. Step 2: Convert to fraction form
    658,027.87/908,061.70 = 367,641.65/x
  3. Step 3: Cross multiply
    658,027.87x = 908,061.70 × 367,641.65
  4. Step 4: Simplify right side
    658,027.87x = 333,841,301,689.81
  5. Step 5: Solve for x
    x = 333,841,301,689.81/658,027.87
  6. Step 6: Final answer
    x = 507,336.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.