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Finding the Fourth Proportional to 385,840.63, 532,482.20 and 216,073.27

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Solution

The fourth proportional to 385,840.63, 532,482.20 and 216,073.27 is: 298,193.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,840.63 : 532,482.20 = 216,073.27 : x
  2. Step 2: Convert to fraction form
    385,840.63/532,482.20 = 216,073.27/x
  3. Step 3: Cross multiply
    385,840.63x = 532,482.20 × 216,073.27
  4. Step 4: Simplify right side
    385,840.63x = 115,055,170,170.79
  5. Step 5: Solve for x
    x = 115,055,170,170.79/385,840.63
  6. Step 6: Final answer
    x = 298,193.51

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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.