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Finding the Fourth Proportional to 827,174.80, 1,240,762.20 and 753,691.60

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Solution

The fourth proportional to 827,174.80, 1,240,762.20 and 753,691.60 is: 1,130,537.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,174.80 : 1,240,762.20 = 753,691.60 : x
  2. Step 2: Convert to fraction form
    827,174.80/1,240,762.20 = 753,691.60/x
  3. Step 3: Cross multiply
    827,174.80x = 1,240,762.20 × 753,691.60
  4. Step 4: Simplify right side
    827,174.80x = 935,152,047,737.52
  5. Step 5: Solve for x
    x = 935,152,047,737.52/827,174.80
  6. Step 6: Final answer
    x = 1,130,537.40

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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.