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Finding the Fourth Proportional to 451,041.71, 622,438.31 and 247,088.16

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Solution

The fourth proportional to 451,041.71, 622,438.31 and 247,088.16 is: 340,982.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,041.71 : 622,438.31 = 247,088.16 : x
  2. Step 2: Convert to fraction form
    451,041.71/622,438.31 = 247,088.16/x
  3. Step 3: Cross multiply
    451,041.71x = 622,438.31 × 247,088.16
  4. Step 4: Simplify right side
    451,041.71x = 153,797,137,349.13
  5. Step 5: Solve for x
    x = 153,797,137,349.13/451,041.71
  6. Step 6: Final answer
    x = 340,982.08

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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.