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Finding the Fourth Proportional to 551,377.40, 773,503 and 551,377.40

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Solution

The fourth proportional to 551,377.40, 773,503 and 551,377.40 is: 773,503

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,377.40 : 773,503 = 551,377.40 : x
  2. Step 2: Convert to fraction form
    551,377.40/773,503 = 551,377.40/x
  3. Step 3: Cross multiply
    551,377.40x = 773,503 × 551,377.40
  4. Step 4: Simplify right side
    551,377.40x = 426,492,073,032.20
  5. Step 5: Solve for x
    x = 426,492,073,032.20/551,377.40
  6. Step 6: Final answer
    x = 773,503

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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.