Home / 466,081.40-643,280.67-291,732.48

Finding the Fourth Proportional to 466,081.40, 643,280.67 and 291,732.48

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Solution

The fourth proportional to 466,081.40, 643,280.67 and 291,732.48 is: 402,646.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    466,081.40 : 643,280.67 = 291,732.48 : x
  2. Step 2: Convert to fraction form
    466,081.40/643,280.67 = 291,732.48/x
  3. Step 3: Cross multiply
    466,081.40x = 643,280.67 × 291,732.48
  4. Step 4: Simplify right side
    466,081.40x = 187,665,865,195.16
  5. Step 5: Solve for x
    x = 187,665,865,195.16/466,081.40
  6. Step 6: Final answer
    x = 402,646.12

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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.