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Finding the Fourth Proportional to 632,341.08, 872,624.34 and 345,866.76

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Solution

The fourth proportional to 632,341.08, 872,624.34 and 345,866.76 is: 477,292.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,341.08 : 872,624.34 = 345,866.76 : x
  2. Step 2: Convert to fraction form
    632,341.08/872,624.34 = 345,866.76/x
  3. Step 3: Cross multiply
    632,341.08x = 872,624.34 × 345,866.76
  4. Step 4: Simplify right side
    632,341.08x = 301,811,753,172.94
  5. Step 5: Solve for x
    x = 301,811,753,172.94/632,341.08
  6. Step 6: Final answer
    x = 477,292.66

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Double scale
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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.