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Finding the Fourth Proportional to 554,615.10, 831,922.65 and 180,638.10

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Solution

The fourth proportional to 554,615.10, 831,922.65 and 180,638.10 is: 270,957.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,615.10 : 831,922.65 = 180,638.10 : x
  2. Step 2: Convert to fraction form
    554,615.10/831,922.65 = 180,638.10/x
  3. Step 3: Cross multiply
    554,615.10x = 831,922.65 × 180,638.10
  4. Step 4: Simplify right side
    554,615.10x = 150,276,926,842.97
  5. Step 5: Solve for x
    x = 150,276,926,842.97/554,615.10
  6. Step 6: Final answer
    x = 270,957.15

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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.