Home / 921,981.20-1,272,418.02-559,497.29

Finding the Fourth Proportional to 921,981.20, 1,272,418.02 and 559,497.29

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Solution

The fourth proportional to 921,981.20, 1,272,418.02 and 559,497.29 is: 772,157.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,981.20 : 1,272,418.02 = 559,497.29 : x
  2. Step 2: Convert to fraction form
    921,981.20/1,272,418.02 = 559,497.29/x
  3. Step 3: Cross multiply
    921,981.20x = 1,272,418.02 × 559,497.29
  4. Step 4: Simplify right side
    921,981.20x = 711,914,427,575.08
  5. Step 5: Solve for x
    x = 711,914,427,575.08/921,981.20
  6. Step 6: Final answer
    x = 772,157.21

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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.