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Finding the Fourth Proportional to 351,248.70, 526,095.45 and 289,040.70

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Solution

The fourth proportional to 351,248.70, 526,095.45 and 289,040.70 is: 432,921.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,248.70 : 526,095.45 = 289,040.70 : x
  2. Step 2: Convert to fraction form
    351,248.70/526,095.45 = 289,040.70/x
  3. Step 3: Cross multiply
    351,248.70x = 526,095.45 × 289,040.70
  4. Step 4: Simplify right side
    351,248.70x = 152,062,997,134.82
  5. Step 5: Solve for x
    x = 152,062,997,134.82/351,248.70
  6. Step 6: Final answer
    x = 432,921.17

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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.