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Finding the Fourth Proportional to 357,630.30, 536,445.45 and 108,312.30

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Solution

The fourth proportional to 357,630.30, 536,445.45 and 108,312.30 is: 162,468.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,630.30 : 536,445.45 = 108,312.30 : x
  2. Step 2: Convert to fraction form
    357,630.30/536,445.45 = 108,312.30/x
  3. Step 3: Cross multiply
    357,630.30x = 536,445.45 × 108,312.30
  4. Step 4: Simplify right side
    357,630.30x = 58,103,640,514.04
  5. Step 5: Solve for x
    x = 58,103,640,514.04/357,630.30
  6. Step 6: Final answer
    x = 162,468.45

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1.5x scale

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.