Home / 718,832.52-991,946.34-396,543.24

Finding the Fourth Proportional to 718,832.52, 991,946.34 and 396,543.24

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Solution

The fourth proportional to 718,832.52, 991,946.34 and 396,543.24 is: 547,206.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,832.52 : 991,946.34 = 396,543.24 : x
  2. Step 2: Convert to fraction form
    718,832.52/991,946.34 = 396,543.24/x
  3. Step 3: Cross multiply
    718,832.52x = 991,946.34 × 396,543.24
  4. Step 4: Simplify right side
    718,832.52x = 393,349,615,569.74
  5. Step 5: Solve for x
    x = 393,349,615,569.74/718,832.52
  6. Step 6: Final answer
    x = 547,206.21

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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.