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Finding the Fourth Proportional to 527,083.05, 727,373.58 and 285,365.59

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Solution

The fourth proportional to 527,083.05, 727,373.58 and 285,365.59 is: 393,803.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,083.05 : 727,373.58 = 285,365.59 : x
  2. Step 2: Convert to fraction form
    527,083.05/727,373.58 = 285,365.59/x
  3. Step 3: Cross multiply
    527,083.05x = 727,373.58 × 285,365.59
  4. Step 4: Simplify right side
    527,083.05x = 207,567,390,807.11
  5. Step 5: Solve for x
    x = 207,567,390,807.11/527,083.05
  6. Step 6: Final answer
    x = 393,803.96

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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.