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Finding the Fourth Proportional to 1,623,068.39, 2,239,639.65 and 934,965.29

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Solution

The fourth proportional to 1,623,068.39, 2,239,639.65 and 934,965.29 is: 1,290,139.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,623,068.39 : 2,239,639.65 = 934,965.29 : x
  2. Step 2: Convert to fraction form
    1,623,068.39/2,239,639.65 = 934,965.29/x
  3. Step 3: Cross multiply
    1,623,068.39x = 2,239,639.65 × 934,965.29
  4. Step 4: Simplify right side
    1,623,068.39x = 2,093,985,323,659.55
  5. Step 5: Solve for x
    x = 2,093,985,323,659.55/1,623,068.39
  6. Step 6: Final answer
    x = 1,290,139.92

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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.