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Finding the Fourth Proportional to 561,601.90, 842,402.85 and 561,601.90

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Solution

The fourth proportional to 561,601.90, 842,402.85 and 561,601.90 is: 842,402.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,601.90 : 842,402.85 = 561,601.90 : x
  2. Step 2: Convert to fraction form
    561,601.90/842,402.85 = 561,601.90/x
  3. Step 3: Cross multiply
    561,601.90x = 842,402.85 × 561,601.90
  4. Step 4: Simplify right side
    561,601.90x = 473,095,041,125.42
  5. Step 5: Solve for x
    x = 473,095,041,125.42/561,601.90
  6. Step 6: Final answer
    x = 842,402.85

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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.