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Finding the Fourth Proportional to 452,854.08, 679,587.30 and 172,364.04

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Solution

The fourth proportional to 452,854.08, 679,587.30 and 172,364.04 is: 258,662.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,854.08 : 679,587.30 = 172,364.04 : x
  2. Step 2: Convert to fraction form
    452,854.08/679,587.30 = 172,364.04/x
  3. Step 3: Cross multiply
    452,854.08x = 679,587.30 × 172,364.04
  4. Step 4: Simplify right side
    452,854.08x = 117,136,412,560.69
  5. Step 5: Solve for x
    x = 117,136,412,560.69/452,854.08
  6. Step 6: Final answer
    x = 258,662.60

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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.