Home / 577,406.20-861,657.88-507,436.24

Finding the Fourth Proportional to 577,406.20, 861,657.88 and 507,436.24

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Solution

The fourth proportional to 577,406.20, 861,657.88 and 507,436.24 is: 757,242.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,406.20 : 861,657.88 = 507,436.24 : x
  2. Step 2: Convert to fraction form
    577,406.20/861,657.88 = 507,436.24/x
  3. Step 3: Cross multiply
    577,406.20x = 861,657.88 × 507,436.24
  4. Step 4: Simplify right side
    577,406.20x = 437,236,434,793.57
  5. Step 5: Solve for x
    x = 437,236,434,793.57/577,406.20
  6. Step 6: Final answer
    x = 757,242.36

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.