Home / 649,819.12-974,728.80-176,574.40

Finding the Fourth Proportional to 649,819.12, 974,728.80 and 176,574.40

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Solution

The fourth proportional to 649,819.12, 974,728.80 and 176,574.40 is: 264,861.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,819.12 : 974,728.80 = 176,574.40 : x
  2. Step 2: Convert to fraction form
    649,819.12/974,728.80 = 176,574.40/x
  3. Step 3: Cross multiply
    649,819.12x = 974,728.80 × 176,574.40
  4. Step 4: Simplify right side
    649,819.12x = 172,112,153,022.72
  5. Step 5: Solve for x
    x = 172,112,153,022.72/649,819.12
  6. Step 6: Final answer
    x = 264,861.63

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Double scale
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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.