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Finding the Fourth Proportional to 539,354.30, 743,988.24 and 348,480.23

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Solution

The fourth proportional to 539,354.30, 743,988.24 and 348,480.23 is: 480,695.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,354.30 : 743,988.24 = 348,480.23 : x
  2. Step 2: Convert to fraction form
    539,354.30/743,988.24 = 348,480.23/x
  3. Step 3: Cross multiply
    539,354.30x = 743,988.24 × 348,480.23
  4. Step 4: Simplify right side
    539,354.30x = 259,265,189,272.55
  5. Step 5: Solve for x
    x = 259,265,189,272.55/539,354.30
  6. Step 6: Final answer
    x = 480,695.51

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Double scale
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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.