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Finding the Fourth Proportional to 268,693.40, 402,456.90 and 222,037.40

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Solution

The fourth proportional to 268,693.40, 402,456.90 and 222,037.40 is: 332,574.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,693.40 : 402,456.90 = 222,037.40 : x
  2. Step 2: Convert to fraction form
    268,693.40/402,456.90 = 222,037.40/x
  3. Step 3: Cross multiply
    268,693.40x = 402,456.90 × 222,037.40
  4. Step 4: Simplify right side
    268,693.40x = 89,360,483,688.06
  5. Step 5: Solve for x
    x = 89,360,483,688.06/268,693.40
  6. Step 6: Final answer
    x = 332,574.17

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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.