Home / 891,125.52-1,229,818.28-509,144.12

Finding the Fourth Proportional to 891,125.52, 1,229,818.28 and 509,144.12

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Solution

The fourth proportional to 891,125.52, 1,229,818.28 and 509,144.12 is: 702,656.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,125.52 : 1,229,818.28 = 509,144.12 : x
  2. Step 2: Convert to fraction form
    891,125.52/1,229,818.28 = 509,144.12/x
  3. Step 3: Cross multiply
    891,125.52x = 1,229,818.28 × 509,144.12
  4. Step 4: Simplify right side
    891,125.52x = 626,154,745,930.51
  5. Step 5: Solve for x
    x = 626,154,745,930.51/891,125.52
  6. Step 6: Final answer
    x = 702,656.06

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Double scale
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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.