Home / 651,115.24-898,613.22-396,615.40

Finding the Fourth Proportional to 651,115.24, 898,613.22 and 396,615.40

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Solution

The fourth proportional to 651,115.24, 898,613.22 and 396,615.40 is: 547,374.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,115.24 : 898,613.22 = 396,615.40 : x
  2. Step 2: Convert to fraction form
    651,115.24/898,613.22 = 396,615.40/x
  3. Step 3: Cross multiply
    651,115.24x = 898,613.22 × 396,615.40
  4. Step 4: Simplify right side
    651,115.24x = 356,403,841,695.59
  5. Step 5: Solve for x
    x = 356,403,841,695.59/651,115.24
  6. Step 6: Final answer
    x = 547,374.44

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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.