Home / 917,203.20-1,265,776.82-530,005.78

Finding the Fourth Proportional to 917,203.20, 1,265,776.82 and 530,005.78

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Solution

The fourth proportional to 917,203.20, 1,265,776.82 and 530,005.78 is: 731,429.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,203.20 : 1,265,776.82 = 530,005.78 : x
  2. Step 2: Convert to fraction form
    917,203.20/1,265,776.82 = 530,005.78/x
  3. Step 3: Cross multiply
    917,203.20x = 1,265,776.82 × 530,005.78
  4. Step 4: Simplify right side
    917,203.20x = 670,869,034,691.02
  5. Step 5: Solve for x
    x = 670,869,034,691.02/917,203.20
  6. Step 6: Final answer
    x = 731,429.02

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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.