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Finding the Fourth Proportional to 549,756.10, 825,248.55 and 513,660.10

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Solution

The fourth proportional to 549,756.10, 825,248.55 and 513,660.10 is: 771,064.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,756.10 : 825,248.55 = 513,660.10 : x
  2. Step 2: Convert to fraction form
    549,756.10/825,248.55 = 513,660.10/x
  3. Step 3: Cross multiply
    549,756.10x = 825,248.55 × 513,660.10
  4. Step 4: Simplify right side
    549,756.10x = 423,897,252,717.86
  5. Step 5: Solve for x
    x = 423,897,252,717.86/549,756.10
  6. Step 6: Final answer
    x = 771,064.21

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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.