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Finding the Fourth Proportional to 551,404.40, 773,540.80 and 551,404.40

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Solution

The fourth proportional to 551,404.40, 773,540.80 and 551,404.40 is: 773,540.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,404.40 : 773,540.80 = 551,404.40 : x
  2. Step 2: Convert to fraction form
    551,404.40/773,540.80 = 551,404.40/x
  3. Step 3: Cross multiply
    551,404.40x = 773,540.80 × 551,404.40
  4. Step 4: Simplify right side
    551,404.40x = 426,533,800,699.52
  5. Step 5: Solve for x
    x = 426,533,800,699.52/551,404.40
  6. Step 6: Final answer
    x = 773,540.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.