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Finding the Fourth Proportional to 1,289,795.04, 1,934,697.06 and 391,244.52

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Solution

The fourth proportional to 1,289,795.04, 1,934,697.06 and 391,244.52 is: 586,868.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,795.04 : 1,934,697.06 = 391,244.52 : x
  2. Step 2: Convert to fraction form
    1,289,795.04/1,934,697.06 = 391,244.52/x
  3. Step 3: Cross multiply
    1,289,795.04x = 1,934,697.06 × 391,244.52
  4. Step 4: Simplify right side
    1,289,795.04x = 756,939,622,585.11
  5. Step 5: Solve for x
    x = 756,939,622,585.11/1,289,795.04
  6. Step 6: Final answer
    x = 586,868.15

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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.