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Finding the Fourth Proportional to 544,040.80, 816,061.20 and 411,330.40

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Solution

The fourth proportional to 544,040.80, 816,061.20 and 411,330.40 is: 616,995.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,040.80 : 816,061.20 = 411,330.40 : x
  2. Step 2: Convert to fraction form
    544,040.80/816,061.20 = 411,330.40/x
  3. Step 3: Cross multiply
    544,040.80x = 816,061.20 × 411,330.40
  4. Step 4: Simplify right side
    544,040.80x = 335,670,779,820.48
  5. Step 5: Solve for x
    x = 335,670,779,820.48/544,040.80
  6. Step 6: Final answer
    x = 616,995.60

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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.