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Finding the Fourth Proportional to 1,194,405, 1,648,278.92 and 657,861

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Solution

The fourth proportional to 1,194,405, 1,648,278.92 and 657,861 is: 907,848.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,194,405 : 1,648,278.92 = 657,861 : x
  2. Step 2: Convert to fraction form
    1,194,405/1,648,278.92 = 657,861/x
  3. Step 3: Cross multiply
    1,194,405x = 1,648,278.92 × 657,861
  4. Step 4: Simplify right side
    1,194,405x = 1,084,338,418,590.12
  5. Step 5: Solve for x
    x = 1,084,338,418,590.12/1,194,405
  6. Step 6: Final answer
    x = 907,848.19

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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.