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Finding the Fourth Proportional to 518,073.40, 777,153.82 and 144,096.36

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Solution

The fourth proportional to 518,073.40, 777,153.82 and 144,096.36 is: 216,156.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,073.40 : 777,153.82 = 144,096.36 : x
  2. Step 2: Convert to fraction form
    518,073.40/777,153.82 = 144,096.36/x
  3. Step 3: Cross multiply
    518,073.40x = 777,153.82 × 144,096.36
  4. Step 4: Simplify right side
    518,073.40x = 111,985,036,622.10
  5. Step 5: Solve for x
    x = 111,985,036,622.10/518,073.40
  6. Step 6: Final answer
    x = 216,156.70

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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.