Home / 983,057.83-1,356,841.07-643,329.25

Finding the Fourth Proportional to 983,057.83, 1,356,841.07 and 643,329.25

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Solution

The fourth proportional to 983,057.83, 1,356,841.07 and 643,329.25 is: 887,939.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    983,057.83 : 1,356,841.07 = 643,329.25 : x
  2. Step 2: Convert to fraction form
    983,057.83/1,356,841.07 = 643,329.25/x
  3. Step 3: Cross multiply
    983,057.83x = 1,356,841.07 × 643,329.25
  4. Step 4: Simplify right side
    983,057.83x = 872,895,547,932.30
  5. Step 5: Solve for x
    x = 872,895,547,932.30/983,057.83
  6. Step 6: Final answer
    x = 887,939.16

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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.