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Finding the Fourth Proportional to 554,354.35, 831,531.53 and 239,426.35

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Solution

The fourth proportional to 554,354.35, 831,531.53 and 239,426.35 is: 359,139.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,354.35 : 831,531.53 = 239,426.35 : x
  2. Step 2: Convert to fraction form
    554,354.35/831,531.53 = 239,426.35/x
  3. Step 3: Cross multiply
    554,354.35x = 831,531.53 × 239,426.35
  4. Step 4: Simplify right side
    554,354.35x = 199,090,557,940.68
  5. Step 5: Solve for x
    x = 199,090,557,940.68/554,354.35
  6. Step 6: Final answer
    x = 359,139.53

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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.