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Finding the Fourth Proportional to 562,909.68, 776,788.56 and 308,262.24

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Solution

The fourth proportional to 562,909.68, 776,788.56 and 308,262.24 is: 425,387.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,909.68 : 776,788.56 = 308,262.24 : x
  2. Step 2: Convert to fraction form
    562,909.68/776,788.56 = 308,262.24/x
  3. Step 3: Cross multiply
    562,909.68x = 776,788.56 × 308,262.24
  4. Step 4: Simplify right side
    562,909.68x = 239,454,581,511.97
  5. Step 5: Solve for x
    x = 239,454,581,511.97/562,909.68
  6. Step 6: Final answer
    x = 425,387.22

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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.