Home / 991,322.03-1,368,019.65-561,601.14

Finding the Fourth Proportional to 991,322.03, 1,368,019.65 and 561,601.14

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Solution

The fourth proportional to 991,322.03, 1,368,019.65 and 561,601.14 is: 775,006.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,322.03 : 1,368,019.65 = 561,601.14 : x
  2. Step 2: Convert to fraction form
    991,322.03/1,368,019.65 = 561,601.14/x
  3. Step 3: Cross multiply
    991,322.03x = 1,368,019.65 × 561,601.14
  4. Step 4: Simplify right side
    991,322.03x = 768,281,388,799.33
  5. Step 5: Solve for x
    x = 768,281,388,799.33/991,322.03
  6. Step 6: Final answer
    x = 775,006.87

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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.