Home / 738,701.28-1,019,346.54-416,490.60

Finding the Fourth Proportional to 738,701.28, 1,019,346.54 and 416,490.60

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Solution

The fourth proportional to 738,701.28, 1,019,346.54 and 416,490.60 is: 574,722.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,701.28 : 1,019,346.54 = 416,490.60 : x
  2. Step 2: Convert to fraction form
    738,701.28/1,019,346.54 = 416,490.60/x
  3. Step 3: Cross multiply
    738,701.28x = 1,019,346.54 × 416,490.60
  4. Step 4: Simplify right side
    738,701.28x = 424,548,252,052.52
  5. Step 5: Solve for x
    x = 424,548,252,052.52/738,701.28
  6. Step 6: Final answer
    x = 574,722.51

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.