Home / 1,205,155.34-1,663,058.62-661,277.60

Finding the Fourth Proportional to 1,205,155.34, 1,663,058.62 and 661,277.60

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Solution

The fourth proportional to 1,205,155.34, 1,663,058.62 and 661,277.60 is: 912,532.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,155.34 : 1,663,058.62 = 661,277.60 : x
  2. Step 2: Convert to fraction form
    1,205,155.34/1,663,058.62 = 661,277.60/x
  3. Step 3: Cross multiply
    1,205,155.34x = 1,663,058.62 × 661,277.60
  4. Step 4: Simplify right side
    1,205,155.34x = 1,099,743,412,892.91
  5. Step 5: Solve for x
    x = 1,099,743,412,892.91/1,205,155.34
  6. Step 6: Final answer
    x = 912,532.50

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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.