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Finding the Fourth Proportional to 499,240.40, 748,860.60 and 162,280.40

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Solution

The fourth proportional to 499,240.40, 748,860.60 and 162,280.40 is: 243,420.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,240.40 : 748,860.60 = 162,280.40 : x
  2. Step 2: Convert to fraction form
    499,240.40/748,860.60 = 162,280.40/x
  3. Step 3: Cross multiply
    499,240.40x = 748,860.60 × 162,280.40
  4. Step 4: Simplify right side
    499,240.40x = 121,525,397,712.24
  5. Step 5: Solve for x
    x = 121,525,397,712.24/499,240.40
  6. Step 6: Final answer
    x = 243,420.60

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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.