Home / 914,454.18-1,261,967.04-521,979.12

Finding the Fourth Proportional to 914,454.18, 1,261,967.04 and 521,979.12

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Solution

The fourth proportional to 914,454.18, 1,261,967.04 and 521,979.12 is: 720,342.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    914,454.18 : 1,261,967.04 = 521,979.12 : x
  2. Step 2: Convert to fraction form
    914,454.18/1,261,967.04 = 521,979.12/x
  3. Step 3: Cross multiply
    914,454.18x = 1,261,967.04 × 521,979.12
  4. Step 4: Simplify right side
    914,454.18x = 658,720,445,008.21
  5. Step 5: Solve for x
    x = 658,720,445,008.21/914,454.18
  6. Step 6: Final answer
    x = 720,342.76

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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.