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Finding the Fourth Proportional to 516,613.52, 775,032.88 and 216,923.24

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Solution

The fourth proportional to 516,613.52, 775,032.88 and 216,923.24 is: 325,432.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,613.52 : 775,032.88 = 216,923.24 : x
  2. Step 2: Convert to fraction form
    516,613.52/775,032.88 = 216,923.24/x
  3. Step 3: Cross multiply
    516,613.52x = 775,032.88 × 216,923.24
  4. Step 4: Simplify right side
    516,613.52x = 168,122,643,436.13
  5. Step 5: Solve for x
    x = 168,122,643,436.13/516,613.52
  6. Step 6: Final answer
    x = 325,432.14

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1.5x scale

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.