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Finding the Fourth Proportional to 522,952.80, 784,325.94 and 143,775.76

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Solution

The fourth proportional to 522,952.80, 784,325.94 and 143,775.76 is: 215,635.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,952.80 : 784,325.94 = 143,775.76 : x
  2. Step 2: Convert to fraction form
    522,952.80/784,325.94 = 143,775.76/x
  3. Step 3: Cross multiply
    522,952.80x = 784,325.94 × 143,775.76
  4. Step 4: Simplify right side
    522,952.80x = 112,767,058,111.21
  5. Step 5: Solve for x
    x = 112,767,058,111.21/522,952.80
  6. Step 6: Final answer
    x = 215,635.25

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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.