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Finding the Fourth Proportional to 624,009.60, 861,059.16 and 352,061.64

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Solution

The fourth proportional to 624,009.60, 861,059.16 and 352,061.64 is: 485,803.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,009.60 : 861,059.16 = 352,061.64 : x
  2. Step 2: Convert to fraction form
    624,009.60/861,059.16 = 352,061.64/x
  3. Step 3: Cross multiply
    624,009.60x = 861,059.16 × 352,061.64
  4. Step 4: Simplify right side
    624,009.60x = 303,145,900,006.62
  5. Step 5: Solve for x
    x = 303,145,900,006.62/624,009.60
  6. Step 6: Final answer
    x = 485,803.26

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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.