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Finding the Fourth Proportional to 2,875.48, 4,312.60 and 794.92

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Solution

The fourth proportional to 2,875.48, 4,312.60 and 794.92 is: 1,192.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,875.48 : 4,312.60 = 794.92 : x
  2. Step 2: Convert to fraction form
    2,875.48/4,312.60 = 794.92/x
  3. Step 3: Cross multiply
    2,875.48x = 4,312.60 × 794.92
  4. Step 4: Simplify right side
    2,875.48x = 3,428,171.99
  5. Step 5: Solve for x
    x = 3,428,171.99/2,875.48
  6. Step 6: Final answer
    x = 1,192.21

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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.