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Finding the Fourth Proportional to 539,117.22, 744,220.90 and 348,223.72

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Solution

The fourth proportional to 539,117.22, 744,220.90 and 348,223.72 is: 480,703.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,117.22 : 744,220.90 = 348,223.72 : x
  2. Step 2: Convert to fraction form
    539,117.22/744,220.90 = 348,223.72/x
  3. Step 3: Cross multiply
    539,117.22x = 744,220.90 × 348,223.72
  4. Step 4: Simplify right side
    539,117.22x = 259,155,370,299.75
  5. Step 5: Solve for x
    x = 259,155,370,299.75/539,117.22
  6. Step 6: Final answer
    x = 480,703.20

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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.