Home / 991,788.80-1,368,572.88-556,223.82

Finding the Fourth Proportional to 991,788.80, 1,368,572.88 and 556,223.82

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Solution

The fourth proportional to 991,788.80, 1,368,572.88 and 556,223.82 is: 767,535.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,788.80 : 1,368,572.88 = 556,223.82 : x
  2. Step 2: Convert to fraction form
    991,788.80/1,368,572.88 = 556,223.82/x
  3. Step 3: Cross multiply
    991,788.80x = 1,368,572.88 × 556,223.82
  4. Step 4: Simplify right side
    991,788.80x = 761,232,835,262.00
  5. Step 5: Solve for x
    x = 761,232,835,262.00/991,788.80
  6. Step 6: Final answer
    x = 767,535.22

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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.