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Finding the Fourth Proportional to 527,897.70, 791,846.55 and 517,400.10

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Solution

The fourth proportional to 527,897.70, 791,846.55 and 517,400.10 is: 776,100.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,897.70 : 791,846.55 = 517,400.10 : x
  2. Step 2: Convert to fraction form
    527,897.70/791,846.55 = 517,400.10/x
  3. Step 3: Cross multiply
    527,897.70x = 791,846.55 × 517,400.10
  4. Step 4: Simplify right side
    527,897.70x = 409,701,484,154.66
  5. Step 5: Solve for x
    x = 409,701,484,154.66/527,897.70
  6. Step 6: Final answer
    x = 776,100.15

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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.