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Finding the Fourth Proportional to 366,618.80, 549,490.80 and 329,002.40

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Solution

The fourth proportional to 366,618.80, 549,490.80 and 329,002.40 is: 493,111.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,618.80 : 549,490.80 = 329,002.40 : x
  2. Step 2: Convert to fraction form
    366,618.80/549,490.80 = 329,002.40/x
  3. Step 3: Cross multiply
    366,618.80x = 549,490.80 × 329,002.40
  4. Step 4: Simplify right side
    366,618.80x = 180,783,791,977.92
  5. Step 5: Solve for x
    x = 180,783,791,977.92/366,618.80
  6. Step 6: Final answer
    x = 493,111.08

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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.