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Finding the Fourth Proportional to 342,341.04, 472,394.04 and 189,354.90

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Solution

The fourth proportional to 342,341.04, 472,394.04 and 189,354.90 is: 261,289.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,341.04 : 472,394.04 = 189,354.90 : x
  2. Step 2: Convert to fraction form
    342,341.04/472,394.04 = 189,354.90/x
  3. Step 3: Cross multiply
    342,341.04x = 472,394.04 × 189,354.90
  4. Step 4: Simplify right side
    342,341.04x = 89,450,126,204.80
  5. Step 5: Solve for x
    x = 89,450,126,204.80/342,341.04
  6. Step 6: Final answer
    x = 261,289.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.