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Finding the Fourth Proportional to 1,194,486, 1,648,390.68 and 657,942

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Solution

The fourth proportional to 1,194,486, 1,648,390.68 and 657,942 is: 907,959.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,194,486 : 1,648,390.68 = 657,942 : x
  2. Step 2: Convert to fraction form
    1,194,486/1,648,390.68 = 657,942/x
  3. Step 3: Cross multiply
    1,194,486x = 1,648,390.68 × 657,942
  4. Step 4: Simplify right side
    1,194,486x = 1,084,545,460,780.56
  5. Step 5: Solve for x
    x = 1,084,545,460,780.56/1,194,486
  6. Step 6: Final answer
    x = 907,959.96

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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.