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Finding the Fourth Proportional to 415,203.58, 623,002.20 and 247,056.08

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Solution

The fourth proportional to 415,203.58, 623,002.20 and 247,056.08 is: 370,701.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,203.58 : 623,002.20 = 247,056.08 : x
  2. Step 2: Convert to fraction form
    415,203.58/623,002.20 = 247,056.08/x
  3. Step 3: Cross multiply
    415,203.58x = 623,002.20 × 247,056.08
  4. Step 4: Simplify right side
    415,203.58x = 153,916,482,920.88
  5. Step 5: Solve for x
    x = 153,916,482,920.88/415,203.58
  6. Step 6: Final answer
    x = 370,701.24

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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.