Home / 769,531.61-1,062,059.11-442,837.91

Finding the Fourth Proportional to 769,531.61, 1,062,059.11 and 442,837.91

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Solution

The fourth proportional to 769,531.61, 1,062,059.11 and 442,837.91 is: 611,177.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,531.61 : 1,062,059.11 = 442,837.91 : x
  2. Step 2: Convert to fraction form
    769,531.61/1,062,059.11 = 442,837.91/x
  3. Step 3: Cross multiply
    769,531.61x = 1,062,059.11 × 442,837.91
  4. Step 4: Simplify right side
    769,531.61x = 470,320,038,116.91
  5. Step 5: Solve for x
    x = 470,320,038,116.91/769,531.61
  6. Step 6: Final answer
    x = 611,177.02

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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.