Home / 385,968.16-532,629.84-216,201.76

Finding the Fourth Proportional to 385,968.16, 532,629.84 and 216,201.76

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Solution

The fourth proportional to 385,968.16, 532,629.84 and 216,201.76 is: 298,354.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,968.16 : 532,629.84 = 216,201.76 : x
  2. Step 2: Convert to fraction form
    385,968.16/532,629.84 = 216,201.76/x
  3. Step 3: Cross multiply
    385,968.16x = 532,629.84 × 216,201.76
  4. Step 4: Simplify right side
    385,968.16x = 115,155,508,836.52
  5. Step 5: Solve for x
    x = 115,155,508,836.52/385,968.16
  6. Step 6: Final answer
    x = 298,354.94

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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.