Home / 983,058.83-1,356,842.45-643,330.25

Finding the Fourth Proportional to 983,058.83, 1,356,842.45 and 643,330.25

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Solution

The fourth proportional to 983,058.83, 1,356,842.45 and 643,330.25 is: 887,940.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    983,058.83 : 1,356,842.45 = 643,330.25 : x
  2. Step 2: Convert to fraction form
    983,058.83/1,356,842.45 = 643,330.25/x
  3. Step 3: Cross multiply
    983,058.83x = 1,356,842.45 × 643,330.25
  4. Step 4: Simplify right side
    983,058.83x = 872,897,792,569.11
  5. Step 5: Solve for x
    x = 872,897,792,569.11/983,058.83
  6. Step 6: Final answer
    x = 887,940.54

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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.