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Finding the Fourth Proportional to 518,316.40, 777,423.57 and 181,294.84

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Solution

The fourth proportional to 518,316.40, 777,423.57 and 181,294.84 is: 271,924.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,316.40 : 777,423.57 = 181,294.84 : x
  2. Step 2: Convert to fraction form
    518,316.40/777,423.57 = 181,294.84/x
  3. Step 3: Cross multiply
    518,316.40x = 777,423.57 × 181,294.84
  4. Step 4: Simplify right side
    518,316.40x = 140,942,881,735.38
  5. Step 5: Solve for x
    x = 140,942,881,735.38/518,316.40
  6. Step 6: Final answer
    x = 271,924.41

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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.