Home / 545,948.10-818,922.15-356,991.30

Finding the Fourth Proportional to 545,948.10, 818,922.15 and 356,991.30

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Solution

The fourth proportional to 545,948.10, 818,922.15 and 356,991.30 is: 535,486.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,948.10 : 818,922.15 = 356,991.30 : x
  2. Step 2: Convert to fraction form
    545,948.10/818,922.15 = 356,991.30/x
  3. Step 3: Cross multiply
    545,948.10x = 818,922.15 × 356,991.30
  4. Step 4: Simplify right side
    545,948.10x = 292,348,082,927.30
  5. Step 5: Solve for x
    x = 292,348,082,927.30/545,948.10
  6. Step 6: Final answer
    x = 535,486.95

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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.