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Finding the Fourth Proportional to 551,294.20, 826,746.90 and 251,918.20

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Solution

The fourth proportional to 551,294.20, 826,746.90 and 251,918.20 is: 377,788.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,294.20 : 826,746.90 = 251,918.20 : x
  2. Step 2: Convert to fraction form
    551,294.20/826,746.90 = 251,918.20/x
  3. Step 3: Cross multiply
    551,294.20x = 826,746.90 × 251,918.20
  4. Step 4: Simplify right side
    551,294.20x = 208,272,590,903.58
  5. Step 5: Solve for x
    x = 208,272,590,903.58/551,294.20
  6. Step 6: Final answer
    x = 377,788.47

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Double scale
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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.