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Finding the Fourth Proportional to 267,428.40, 368,960.16 and 152,624.88

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Solution

The fourth proportional to 267,428.40, 368,960.16 and 152,624.88 is: 210,570.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,428.40 : 368,960.16 = 152,624.88 : x
  2. Step 2: Convert to fraction form
    267,428.40/368,960.16 = 152,624.88/x
  3. Step 3: Cross multiply
    267,428.40x = 368,960.16 × 152,624.88
  4. Step 4: Simplify right side
    267,428.40x = 56,312,500,144.78
  5. Step 5: Solve for x
    x = 56,312,500,144.78/267,428.40
  6. Step 6: Final answer
    x = 210,570.38

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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.