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Finding the Fourth Proportional to 463,113.50, 639,096.63 and 251,145.50

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Solution

The fourth proportional to 463,113.50, 639,096.63 and 251,145.50 is: 346,580.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,113.50 : 639,096.63 = 251,145.50 : x
  2. Step 2: Convert to fraction form
    463,113.50/639,096.63 = 251,145.50/x
  3. Step 3: Cross multiply
    463,113.50x = 639,096.63 × 251,145.50
  4. Step 4: Simplify right side
    463,113.50x = 160,506,242,689.67
  5. Step 5: Solve for x
    x = 160,506,242,689.67/463,113.50
  6. Step 6: Final answer
    x = 346,580.79

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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.