Home / 649,504.20-974,256.30-436,927.80

Finding the Fourth Proportional to 649,504.20, 974,256.30 and 436,927.80

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Solution

The fourth proportional to 649,504.20, 974,256.30 and 436,927.80 is: 655,391.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,504.20 : 974,256.30 = 436,927.80 : x
  2. Step 2: Convert to fraction form
    649,504.20/974,256.30 = 436,927.80/x
  3. Step 3: Cross multiply
    649,504.20x = 974,256.30 × 436,927.80
  4. Step 4: Simplify right side
    649,504.20x = 425,679,661,795.14
  5. Step 5: Solve for x
    x = 425,679,661,795.14/649,504.20
  6. Step 6: Final answer
    x = 655,391.70

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Half scale
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Double scale
Find fourth proportional to 649,505.20, 974,257.80 and 436,928.80
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.