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Finding the Fourth Proportional to 1,373,451.49, 1,895,373.68 and 761,568.48

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Solution

The fourth proportional to 1,373,451.49, 1,895,373.68 and 761,568.48 is: 1,050,970.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,373,451.49 : 1,895,373.68 = 761,568.48 : x
  2. Step 2: Convert to fraction form
    1,373,451.49/1,895,373.68 = 761,568.48/x
  3. Step 3: Cross multiply
    1,373,451.49x = 1,895,373.68 × 761,568.48
  4. Step 4: Simplify right side
    1,373,451.49x = 1,443,456,848,701.76
  5. Step 5: Solve for x
    x = 1,443,456,848,701.76/1,373,451.49
  6. Step 6: Final answer
    x = 1,050,970.39

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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.