Home / 627,452.16-865,987.20-458,246.40

Finding the Fourth Proportional to 627,452.16, 865,987.20 and 458,246.40

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Solution

The fourth proportional to 627,452.16, 865,987.20 and 458,246.40 is: 632,455.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,452.16 : 865,987.20 = 458,246.40 : x
  2. Step 2: Convert to fraction form
    627,452.16/865,987.20 = 458,246.40/x
  3. Step 3: Cross multiply
    627,452.16x = 865,987.20 × 458,246.40
  4. Step 4: Simplify right side
    627,452.16x = 396,835,516,846.08
  5. Step 5: Solve for x
    x = 396,835,516,846.08/627,452.16
  6. Step 6: Final answer
    x = 632,455.42

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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.