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Finding the Fourth Proportional to 458,086.32, 632,176.02 and 276,763.22

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Solution

The fourth proportional to 458,086.32, 632,176.02 and 276,763.22 is: 381,943.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,086.32 : 632,176.02 = 276,763.22 : x
  2. Step 2: Convert to fraction form
    458,086.32/632,176.02 = 276,763.22/x
  3. Step 3: Cross multiply
    458,086.32x = 632,176.02 × 276,763.22
  4. Step 4: Simplify right side
    458,086.32x = 174,963,070,210.08
  5. Step 5: Solve for x
    x = 174,963,070,210.08/458,086.32
  6. Step 6: Final answer
    x = 381,943.45

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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.