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Finding the Fourth Proportional to 589,748.80, 884,428.80 and 215,723.20

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Solution

The fourth proportional to 589,748.80, 884,428.80 and 215,723.20 is: 323,513.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,748.80 : 884,428.80 = 215,723.20 : x
  2. Step 2: Convert to fraction form
    589,748.80/884,428.80 = 215,723.20/x
  3. Step 3: Cross multiply
    589,748.80x = 884,428.80 × 215,723.20
  4. Step 4: Simplify right side
    589,748.80x = 190,791,810,908.16
  5. Step 5: Solve for x
    x = 190,791,810,908.16/589,748.80
  6. Step 6: Final answer
    x = 323,513.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.