Home / 649,815.20-974,722.80-176,559.20

Finding the Fourth Proportional to 649,815.20, 974,722.80 and 176,559.20

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Solution

The fourth proportional to 649,815.20, 974,722.80 and 176,559.20 is: 264,838.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,815.20 : 974,722.80 = 176,559.20 : x
  2. Step 2: Convert to fraction form
    649,815.20/974,722.80 = 176,559.20/x
  3. Step 3: Cross multiply
    649,815.20x = 974,722.80 × 176,559.20
  4. Step 4: Simplify right side
    649,815.20x = 172,096,277,789.76
  5. Step 5: Solve for x
    x = 172,096,277,789.76/649,815.20
  6. Step 6: Final answer
    x = 264,838.80

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Half scale
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Double scale
Find fourth proportional to 649,816.20, 974,724.30 and 176,560.20
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.