Home / 662,723.14-914,514.36-390,777.88

Finding the Fourth Proportional to 662,723.14, 914,514.36 and 390,777.88

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Solution

The fourth proportional to 662,723.14, 914,514.36 and 390,777.88 is: 539,247.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,723.14 : 914,514.36 = 390,777.88 : x
  2. Step 2: Convert to fraction form
    662,723.14/914,514.36 = 390,777.88/x
  3. Step 3: Cross multiply
    662,723.14x = 914,514.36 × 390,777.88
  4. Step 4: Simplify right side
    662,723.14x = 357,371,982,830.36
  5. Step 5: Solve for x
    x = 357,371,982,830.36/662,723.14
  6. Step 6: Final answer
    x = 539,247.78

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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.