Home / 838,612.52-1,157,253.69-512,470.88

Finding the Fourth Proportional to 838,612.52, 1,157,253.69 and 512,470.88

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Solution

The fourth proportional to 838,612.52, 1,157,253.69 and 512,470.88 is: 707,190.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,612.52 : 1,157,253.69 = 512,470.88 : x
  2. Step 2: Convert to fraction form
    838,612.52/1,157,253.69 = 512,470.88/x
  3. Step 3: Cross multiply
    838,612.52x = 1,157,253.69 × 512,470.88
  4. Step 4: Simplify right side
    838,612.52x = 593,058,816,897.55
  5. Step 5: Solve for x
    x = 593,058,816,897.55/838,612.52
  6. Step 6: Final answer
    x = 707,190.51

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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.