Home / 865,718.20-1,298,577.30-627,945.40

Finding the Fourth Proportional to 865,718.20, 1,298,577.30 and 627,945.40

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Solution

The fourth proportional to 865,718.20, 1,298,577.30 and 627,945.40 is: 941,918.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,718.20 : 1,298,577.30 = 627,945.40 : x
  2. Step 2: Convert to fraction form
    865,718.20/1,298,577.30 = 627,945.40/x
  3. Step 3: Cross multiply
    865,718.20x = 1,298,577.30 × 627,945.40
  4. Step 4: Simplify right side
    865,718.20x = 815,435,642,079.42
  5. Step 5: Solve for x
    x = 815,435,642,079.42/865,718.20
  6. Step 6: Final answer
    x = 941,918.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.