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Finding the Fourth Proportional to 291,486.16, 402,436.60 and 237,898.96

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Solution

The fourth proportional to 291,486.16, 402,436.60 and 237,898.96 is: 328,452.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,486.16 : 402,436.60 = 237,898.96 : x
  2. Step 2: Convert to fraction form
    291,486.16/402,436.60 = 237,898.96/x
  3. Step 3: Cross multiply
    291,486.16x = 402,436.60 × 237,898.96
  4. Step 4: Simplify right side
    291,486.16x = 95,739,248,605.94
  5. Step 5: Solve for x
    x = 95,739,248,605.94/291,486.16
  6. Step 6: Final answer
    x = 328,452.12

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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.