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Finding the Fourth Proportional to 513,235.62, 769,803.95 and 158,154.30

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Solution

The fourth proportional to 513,235.62, 769,803.95 and 158,154.30 is: 237,216.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,235.62 : 769,803.95 = 158,154.30 : x
  2. Step 2: Convert to fraction form
    513,235.62/769,803.95 = 158,154.30/x
  3. Step 3: Cross multiply
    513,235.62x = 769,803.95 × 158,154.30
  4. Step 4: Simplify right side
    513,235.62x = 121,747,804,058.71
  5. Step 5: Solve for x
    x = 121,747,804,058.71/513,235.62
  6. Step 6: Final answer
    x = 237,216.20

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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.