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Finding the Fourth Proportional to 366,909.20, 549,707.70 and 314,421.20

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Solution

The fourth proportional to 366,909.20, 549,707.70 and 314,421.20 is: 471,069.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,909.20 : 549,707.70 = 314,421.20 : x
  2. Step 2: Convert to fraction form
    366,909.20/549,707.70 = 314,421.20/x
  3. Step 3: Cross multiply
    366,909.20x = 549,707.70 × 314,421.20
  4. Step 4: Simplify right side
    366,909.20x = 172,839,754,683.24
  5. Step 5: Solve for x
    x = 172,839,754,683.24/366,909.20
  6. Step 6: Final answer
    x = 471,069.56

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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.