Home / 612,069.20-918,103.80-588,741.20

Finding the Fourth Proportional to 612,069.20, 918,103.80 and 588,741.20

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Solution

The fourth proportional to 612,069.20, 918,103.80 and 588,741.20 is: 883,111.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,069.20 : 918,103.80 = 588,741.20 : x
  2. Step 2: Convert to fraction form
    612,069.20/918,103.80 = 588,741.20/x
  3. Step 3: Cross multiply
    612,069.20x = 918,103.80 × 588,741.20
  4. Step 4: Simplify right side
    612,069.20x = 540,525,532,936.56
  5. Step 5: Solve for x
    x = 540,525,532,936.56/612,069.20
  6. Step 6: Final answer
    x = 883,111.80

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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.