Home / 386,817.02-533,812.38-217,047.50

Finding the Fourth Proportional to 386,817.02, 533,812.38 and 217,047.50

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Solution

The fourth proportional to 386,817.02, 533,812.38 and 217,047.50 is: 299,528.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,817.02 : 533,812.38 = 217,047.50 : x
  2. Step 2: Convert to fraction form
    386,817.02/533,812.38 = 217,047.50/x
  3. Step 3: Cross multiply
    386,817.02x = 533,812.38 × 217,047.50
  4. Step 4: Simplify right side
    386,817.02x = 115,862,642,548.05
  5. Step 5: Solve for x
    x = 115,862,642,548.05/386,817.02
  6. Step 6: Final answer
    x = 299,528.30

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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.