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Finding the Fourth Proportional to 516,330, 710,766.36 and 447,945.12

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Solution

The fourth proportional to 516,330, 710,766.36 and 447,945.12 is: 616,629.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,330 : 710,766.36 = 447,945.12 : x
  2. Step 2: Convert to fraction form
    516,330/710,766.36 = 447,945.12/x
  3. Step 3: Cross multiply
    516,330x = 710,766.36 × 447,945.12
  4. Step 4: Simplify right side
    516,330x = 318,384,322,422.16
  5. Step 5: Solve for x
    x = 318,384,322,422.16/516,330
  6. Step 6: Final answer
    x = 616,629.52

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1.5x scale

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.