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Finding the Fourth Proportional to 590,955.20, 886,432.80 and 401,998.40

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Solution

The fourth proportional to 590,955.20, 886,432.80 and 401,998.40 is: 602,997.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,955.20 : 886,432.80 = 401,998.40 : x
  2. Step 2: Convert to fraction form
    590,955.20/886,432.80 = 401,998.40/x
  3. Step 3: Cross multiply
    590,955.20x = 886,432.80 × 401,998.40
  4. Step 4: Simplify right side
    590,955.20x = 356,344,567,307.52
  5. Step 5: Solve for x
    x = 356,344,567,307.52/590,955.20
  6. Step 6: Final answer
    x = 602,997.60

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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.