Home / 386,869.02-533,931.39-217,112.46

Finding the Fourth Proportional to 386,869.02, 533,931.39 and 217,112.46

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Solution

The fourth proportional to 386,869.02, 533,931.39 and 217,112.46 is: 299,644.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,869.02 : 533,931.39 = 217,112.46 : x
  2. Step 2: Convert to fraction form
    386,869.02/533,931.39 = 217,112.46/x
  3. Step 3: Cross multiply
    386,869.02x = 533,931.39 × 217,112.46
  4. Step 4: Simplify right side
    386,869.02x = 115,923,157,554.12
  5. Step 5: Solve for x
    x = 115,923,157,554.12/386,869.02
  6. Step 6: Final answer
    x = 299,644.46

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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.