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Finding the Fourth Proportional to 512,304.06, 706,990.73 and 282,860.58

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Solution

The fourth proportional to 512,304.06, 706,990.73 and 282,860.58 is: 390,353.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,304.06 : 706,990.73 = 282,860.58 : x
  2. Step 2: Convert to fraction form
    512,304.06/706,990.73 = 282,860.58/x
  3. Step 3: Cross multiply
    512,304.06x = 706,990.73 × 282,860.58
  4. Step 4: Simplify right side
    512,304.06x = 199,979,806,528.12
  5. Step 5: Solve for x
    x = 199,979,806,528.12/512,304.06
  6. Step 6: Final answer
    x = 390,353.74

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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.