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Finding the Fourth Proportional to 549,488.18, 824,513.73 and 261,625.59

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Solution

The fourth proportional to 549,488.18, 824,513.73 and 261,625.59 is: 392,572.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,488.18 : 824,513.73 = 261,625.59 : x
  2. Step 2: Convert to fraction form
    549,488.18/824,513.73 = 261,625.59/x
  3. Step 3: Cross multiply
    549,488.18x = 824,513.73 × 261,625.59
  4. Step 4: Simplify right side
    549,488.18x = 215,713,891,074.35
  5. Step 5: Solve for x
    x = 215,713,891,074.35/549,488.18
  6. Step 6: Final answer
    x = 392,572.40

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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.