Home / 991,523.70-1,368,298.98-561,885.66

Finding the Fourth Proportional to 991,523.70, 1,368,298.98 and 561,885.66

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Solution

The fourth proportional to 991,523.70, 1,368,298.98 and 561,885.66 is: 775,400.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,523.70 : 1,368,298.98 = 561,885.66 : x
  2. Step 2: Convert to fraction form
    991,523.70/1,368,298.98 = 561,885.66/x
  3. Step 3: Cross multiply
    991,523.70x = 1,368,298.98 × 561,885.66
  4. Step 4: Simplify right side
    991,523.70x = 768,827,575,454.63
  5. Step 5: Solve for x
    x = 768,827,575,454.63/991,523.70
  6. Step 6: Final answer
    x = 775,400.10

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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.