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Finding the Fourth Proportional to 606,543.60, 909,815.40 and 185,764.80

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Solution

The fourth proportional to 606,543.60, 909,815.40 and 185,764.80 is: 278,647.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,543.60 : 909,815.40 = 185,764.80 : x
  2. Step 2: Convert to fraction form
    606,543.60/909,815.40 = 185,764.80/x
  3. Step 3: Cross multiply
    606,543.60x = 909,815.40 × 185,764.80
  4. Step 4: Simplify right side
    606,543.60x = 169,011,675,817.92
  5. Step 5: Solve for x
    x = 169,011,675,817.92/606,543.60
  6. Step 6: Final answer
    x = 278,647.20

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Similar ratio
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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.