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Finding the Fourth Proportional to 539,191.22, 744,078.74 and 297,475.74

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Solution

The fourth proportional to 539,191.22, 744,078.74 and 297,475.74 is: 410,513.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,191.22 : 744,078.74 = 297,475.74 : x
  2. Step 2: Convert to fraction form
    539,191.22/744,078.74 = 297,475.74/x
  3. Step 3: Cross multiply
    539,191.22x = 744,078.74 × 297,475.74
  4. Step 4: Simplify right side
    539,191.22x = 221,345,372,312.39
  5. Step 5: Solve for x
    x = 221,345,372,312.39/539,191.22
  6. Step 6: Final answer
    x = 410,513.68

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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.