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Finding the Fourth Proportional to 551,408.90, 773,547.10 and 551,408.90

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Solution

The fourth proportional to 551,408.90, 773,547.10 and 551,408.90 is: 773,547.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,408.90 : 773,547.10 = 551,408.90 : x
  2. Step 2: Convert to fraction form
    551,408.90/773,547.10 = 551,408.90/x
  3. Step 3: Cross multiply
    551,408.90x = 773,547.10 × 551,408.90
  4. Step 4: Simplify right side
    551,408.90x = 426,540,755,509.19
  5. Step 5: Solve for x
    x = 426,540,755,509.19/551,408.90
  6. Step 6: Final answer
    x = 773,547.10

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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.