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Finding the Fourth Proportional to 367,030.30, 550,545.45 and 311,043.10

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Solution

The fourth proportional to 367,030.30, 550,545.45 and 311,043.10 is: 466,564.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,030.30 : 550,545.45 = 311,043.10 : x
  2. Step 2: Convert to fraction form
    367,030.30/550,545.45 = 311,043.10/x
  3. Step 3: Cross multiply
    367,030.30x = 550,545.45 × 311,043.10
  4. Step 4: Simplify right side
    367,030.30x = 171,243,363,458.90
  5. Step 5: Solve for x
    x = 171,243,363,458.90/367,030.30
  6. Step 6: Final answer
    x = 466,564.65

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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.