Home / 579,877.13-869,466.10-259,971.14

Finding the Fourth Proportional to 579,877.13, 869,466.10 and 259,971.14

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Solution

The fourth proportional to 579,877.13, 869,466.10 and 259,971.14 is: 389,799.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,877.13 : 869,466.10 = 259,971.14 : x
  2. Step 2: Convert to fraction form
    579,877.13/869,466.10 = 259,971.14/x
  3. Step 3: Cross multiply
    579,877.13x = 869,466.10 × 259,971.14
  4. Step 4: Simplify right side
    579,877.13x = 226,036,093,208.35
  5. Step 5: Solve for x
    x = 226,036,093,208.35/579,877.13
  6. Step 6: Final answer
    x = 389,799.98

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.