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Finding the Fourth Proportional to 549,491.40, 824,355.48 and 170,404.56

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Solution

The fourth proportional to 549,491.40, 824,355.48 and 170,404.56 is: 255,643.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,491.40 : 824,355.48 = 170,404.56 : x
  2. Step 2: Convert to fraction form
    549,491.40/824,355.48 = 170,404.56/x
  3. Step 3: Cross multiply
    549,491.40x = 824,355.48 × 170,404.56
  4. Step 4: Simplify right side
    549,491.40x = 140,473,932,852.99
  5. Step 5: Solve for x
    x = 140,473,932,852.99/549,491.40
  6. Step 6: Final answer
    x = 255,643.55

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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.