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Finding the Fourth Proportional to 1,709,187.04, 2,358,719.22 and 934,890.63

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Solution

The fourth proportional to 1,709,187.04, 2,358,719.22 and 934,890.63 is: 1,290,171.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,709,187.04 : 2,358,719.22 = 934,890.63 : x
  2. Step 2: Convert to fraction form
    1,709,187.04/2,358,719.22 = 934,890.63/x
  3. Step 3: Cross multiply
    1,709,187.04x = 2,358,719.22 × 934,890.63
  4. Step 4: Simplify right side
    1,709,187.04x = 2,205,144,497,578.91
  5. Step 5: Solve for x
    x = 2,205,144,497,578.91/1,709,187.04
  6. Step 6: Final answer
    x = 1,290,171.55

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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.