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Finding the Fourth Proportional to 526,545.40, 739,029.80 and 526,545.40

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Solution

The fourth proportional to 526,545.40, 739,029.80 and 526,545.40 is: 739,029.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,545.40 : 739,029.80 = 526,545.40 : x
  2. Step 2: Convert to fraction form
    526,545.40/739,029.80 = 526,545.40/x
  3. Step 3: Cross multiply
    526,545.40x = 739,029.80 × 526,545.40
  4. Step 4: Simplify right side
    526,545.40x = 389,132,741,652.92
  5. Step 5: Solve for x
    x = 389,132,741,652.92/526,545.40
  6. Step 6: Final answer
    x = 739,029.80

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.