Home / 891,119.52-1,229,631.28-509,171.04

Finding the Fourth Proportional to 891,119.52, 1,229,631.28 and 509,171.04

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Solution

The fourth proportional to 891,119.52, 1,229,631.28 and 509,171.04 is: 702,591.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,119.52 : 1,229,631.28 = 509,171.04 : x
  2. Step 2: Convert to fraction form
    891,119.52/1,229,631.28 = 509,171.04/x
  3. Step 3: Cross multiply
    891,119.52x = 1,229,631.28 × 509,171.04
  4. Step 4: Simplify right side
    891,119.52x = 626,092,637,654.13
  5. Step 5: Solve for x
    x = 626,092,637,654.13/891,119.52
  6. Step 6: Final answer
    x = 702,591.09

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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.