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Finding the Fourth Proportional to 480,086.16, 720,581.22 and 243,598.56

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Solution

The fourth proportional to 480,086.16, 720,581.22 and 243,598.56 is: 365,627.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,086.16 : 720,581.22 = 243,598.56 : x
  2. Step 2: Convert to fraction form
    480,086.16/720,581.22 = 243,598.56/x
  3. Step 3: Cross multiply
    480,086.16x = 720,581.22 × 243,598.56
  4. Step 4: Simplify right side
    480,086.16x = 175,532,547,555.04
  5. Step 5: Solve for x
    x = 175,532,547,555.04/480,086.16
  6. Step 6: Final answer
    x = 365,627.18

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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.