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Finding the Fourth Proportional to 482,000.34, 723,434.15 and 257,552.63

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Solution

The fourth proportional to 482,000.34, 723,434.15 and 257,552.63 is: 386,560.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,000.34 : 723,434.15 = 257,552.63 : x
  2. Step 2: Convert to fraction form
    482,000.34/723,434.15 = 257,552.63/x
  3. Step 3: Cross multiply
    482,000.34x = 723,434.15 × 257,552.63
  4. Step 4: Simplify right side
    482,000.34x = 186,322,363,059.38
  5. Step 5: Solve for x
    x = 186,322,363,059.38/482,000.34
  6. Step 6: Final answer
    x = 386,560.65

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Similar ratio
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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.