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Finding the Fourth Proportional to 518,598.32, 777,717.50 and 181,631.48

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Solution

The fourth proportional to 518,598.32, 777,717.50 and 181,631.48 is: 272,384.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,598.32 : 777,717.50 = 181,631.48 : x
  2. Step 2: Convert to fraction form
    518,598.32/777,717.50 = 181,631.48/x
  3. Step 3: Cross multiply
    518,598.32x = 777,717.50 × 181,631.48
  4. Step 4: Simplify right side
    518,598.32x = 141,257,975,750.16
  5. Step 5: Solve for x
    x = 141,257,975,750.16/518,598.32
  6. Step 6: Final answer
    x = 272,384.18

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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.