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Finding the Fourth Proportional to 563,221.46, 777,265.45 and 308,572.85

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Solution

The fourth proportional to 563,221.46, 777,265.45 and 308,572.85 is: 425,841.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,221.46 : 777,265.45 = 308,572.85 : x
  2. Step 2: Convert to fraction form
    563,221.46/777,265.45 = 308,572.85/x
  3. Step 3: Cross multiply
    563,221.46x = 777,265.45 × 308,572.85
  4. Step 4: Simplify right side
    563,221.46x = 239,843,016,284.76
  5. Step 5: Solve for x
    x = 239,843,016,284.76/563,221.46
  6. Step 6: Final answer
    x = 425,841.40

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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.