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Finding the Fourth Proportional to 418,765.14, 577,947.20 and 246,674.22

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Solution

The fourth proportional to 418,765.14, 577,947.20 and 246,674.22 is: 340,440.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,765.14 : 577,947.20 = 246,674.22 : x
  2. Step 2: Convert to fraction form
    418,765.14/577,947.20 = 246,674.22/x
  3. Step 3: Cross multiply
    418,765.14x = 577,947.20 × 246,674.22
  4. Step 4: Simplify right side
    418,765.14x = 142,564,671,871.45
  5. Step 5: Solve for x
    x = 142,564,671,871.45/418,765.14
  6. Step 6: Final answer
    x = 340,440.64

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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.