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Finding the Fourth Proportional to 514,831.20, 772,246.80 and 496,168.80

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Solution

The fourth proportional to 514,831.20, 772,246.80 and 496,168.80 is: 744,253.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,831.20 : 772,246.80 = 496,168.80 : x
  2. Step 2: Convert to fraction form
    514,831.20/772,246.80 = 496,168.80/x
  3. Step 3: Cross multiply
    514,831.20x = 772,246.80 × 496,168.80
  4. Step 4: Simplify right side
    514,831.20x = 383,164,768,059.84
  5. Step 5: Solve for x
    x = 383,164,768,059.84/514,831.20
  6. Step 6: Final answer
    x = 744,253.20

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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.