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Finding the Fourth Proportional to 516,323.32, 712,521 and 283,754.08

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Solution

The fourth proportional to 516,323.32, 712,521 and 283,754.08 is: 391,577.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,323.32 : 712,521 = 283,754.08 : x
  2. Step 2: Convert to fraction form
    516,323.32/712,521 = 283,754.08/x
  3. Step 3: Cross multiply
    516,323.32x = 712,521 × 283,754.08
  4. Step 4: Simplify right side
    516,323.32x = 202,180,740,835.68
  5. Step 5: Solve for x
    x = 202,180,740,835.68/516,323.32
  6. Step 6: Final answer
    x = 391,577.78

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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.