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Finding the Fourth Proportional to 585,612.80, 878,419.20 and 333,670.40

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Solution

The fourth proportional to 585,612.80, 878,419.20 and 333,670.40 is: 500,505.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,612.80 : 878,419.20 = 333,670.40 : x
  2. Step 2: Convert to fraction form
    585,612.80/878,419.20 = 333,670.40/x
  3. Step 3: Cross multiply
    585,612.80x = 878,419.20 × 333,670.40
  4. Step 4: Simplify right side
    585,612.80x = 293,102,485,831.68
  5. Step 5: Solve for x
    x = 293,102,485,831.68/585,612.80
  6. Step 6: Final answer
    x = 500,505.60

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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.