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Finding the Fourth Proportional to 366,616.80, 549,925.20 and 354,369.60

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Solution

The fourth proportional to 366,616.80, 549,925.20 and 354,369.60 is: 531,554.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,616.80 : 549,925.20 = 354,369.60 : x
  2. Step 2: Convert to fraction form
    366,616.80/549,925.20 = 354,369.60/x
  3. Step 3: Cross multiply
    366,616.80x = 549,925.20 × 354,369.60
  4. Step 4: Simplify right side
    366,616.80x = 194,876,773,153.92
  5. Step 5: Solve for x
    x = 194,876,773,153.92/366,616.80
  6. Step 6: Final answer
    x = 531,554.40

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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.