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Finding the Fourth Proportional to 286,693.28, 396,041.28 and 229,711.04

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Solution

The fourth proportional to 286,693.28, 396,041.28 and 229,711.04 is: 317,325.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,693.28 : 396,041.28 = 229,711.04 : x
  2. Step 2: Convert to fraction form
    286,693.28/396,041.28 = 229,711.04/x
  3. Step 3: Cross multiply
    286,693.28x = 396,041.28 × 229,711.04
  4. Step 4: Simplify right side
    286,693.28x = 90,975,054,311.73
  5. Step 5: Solve for x
    x = 90,975,054,311.73/286,693.28
  6. Step 6: Final answer
    x = 317,325.38

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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.