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Finding the Fourth Proportional to 861,240.48, 1,188,502.48 and 474,047.52

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Solution

The fourth proportional to 861,240.48, 1,188,502.48 and 474,047.52 is: 654,180.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,240.48 : 1,188,502.48 = 474,047.52 : x
  2. Step 2: Convert to fraction form
    861,240.48/1,188,502.48 = 474,047.52/x
  3. Step 3: Cross multiply
    861,240.48x = 1,188,502.48 × 474,047.52
  4. Step 4: Simplify right side
    861,240.48x = 563,406,653,157.85
  5. Step 5: Solve for x
    x = 563,406,653,157.85/861,240.48
  6. Step 6: Final answer
    x = 654,180.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.