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Finding the Fourth Proportional to 527,998.40, 791,997.60 and 527,998.40

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Solution

The fourth proportional to 527,998.40, 791,997.60 and 527,998.40 is: 791,997.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,998.40 : 791,997.60 = 527,998.40 : x
  2. Step 2: Convert to fraction form
    527,998.40/791,997.60 = 527,998.40/x
  3. Step 3: Cross multiply
    527,998.40x = 791,997.60 × 527,998.40
  4. Step 4: Simplify right side
    527,998.40x = 418,173,465,603.84
  5. Step 5: Solve for x
    x = 418,173,465,603.84/527,998.40
  6. Step 6: Final answer
    x = 791,997.60

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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.