Home / 838,613.52-1,157,255.07-512,471.88

Finding the Fourth Proportional to 838,613.52, 1,157,255.07 and 512,471.88

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Solution

The fourth proportional to 838,613.52, 1,157,255.07 and 512,471.88 is: 707,191.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,613.52 : 1,157,255.07 = 512,471.88 : x
  2. Step 2: Convert to fraction form
    838,613.52/1,157,255.07 = 512,471.88/x
  3. Step 3: Cross multiply
    838,613.52x = 1,157,255.07 × 512,471.88
  4. Step 4: Simplify right side
    838,613.52x = 593,060,681,362.43
  5. Step 5: Solve for x
    x = 593,060,681,362.43/838,613.52
  6. Step 6: Final answer
    x = 707,191.89

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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.