Home / 728,078.60-1,092,117.90-444,643.40

Finding the Fourth Proportional to 728,078.60, 1,092,117.90 and 444,643.40

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Solution

The fourth proportional to 728,078.60, 1,092,117.90 and 444,643.40 is: 666,965.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,078.60 : 1,092,117.90 = 444,643.40 : x
  2. Step 2: Convert to fraction form
    728,078.60/1,092,117.90 = 444,643.40/x
  3. Step 3: Cross multiply
    728,078.60x = 1,092,117.90 × 444,643.40
  4. Step 4: Simplify right side
    728,078.60x = 485,603,016,256.86
  5. Step 5: Solve for x
    x = 485,603,016,256.86/728,078.60
  6. Step 6: Final answer
    x = 666,965.10

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1.5x scale

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.