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Finding the Fourth Proportional to 1,158,927.39, 1,738,869.39 and 625,820.63

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Solution

The fourth proportional to 1,158,927.39, 1,738,869.39 and 625,820.63 is: 938,989.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,158,927.39 : 1,738,869.39 = 625,820.63 : x
  2. Step 2: Convert to fraction form
    1,158,927.39/1,738,869.39 = 625,820.63/x
  3. Step 3: Cross multiply
    1,158,927.39x = 1,738,869.39 × 625,820.63
  4. Step 4: Simplify right side
    1,158,927.39x = 1,088,220,328,443.17
  5. Step 5: Solve for x
    x = 1,088,220,328,443.17/1,158,927.39
  6. Step 6: Final answer
    x = 938,989.22

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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.