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Finding the Fourth Proportional to 385,792.44, 532,378.89 and 216,018.06

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Solution

The fourth proportional to 385,792.44, 532,378.89 and 216,018.06 is: 298,096.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,792.44 : 532,378.89 = 216,018.06 : x
  2. Step 2: Convert to fraction form
    385,792.44/532,378.89 = 216,018.06/x
  3. Step 3: Cross multiply
    385,792.44x = 532,378.89 × 216,018.06
  4. Step 4: Simplify right side
    385,792.44x = 115,003,455,002.75
  5. Step 5: Solve for x
    x = 115,003,455,002.75/385,792.44
  6. Step 6: Final answer
    x = 298,096.70

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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.