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Finding the Fourth Proportional to 527,283.34, 727,646.90 and 285,560.32

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Solution

The fourth proportional to 527,283.34, 727,646.90 and 285,560.32 is: 394,071.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,283.34 : 727,646.90 = 285,560.32 : x
  2. Step 2: Convert to fraction form
    527,283.34/727,646.90 = 285,560.32/x
  3. Step 3: Cross multiply
    527,283.34x = 727,646.90 × 285,560.32
  4. Step 4: Simplify right side
    527,283.34x = 207,787,081,611.01
  5. Step 5: Solve for x
    x = 207,787,081,611.01/527,283.34
  6. Step 6: Final answer
    x = 394,071.02

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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.