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Finding the Fourth Proportional to 551,317.70, 772,632.10 and 551,317.70

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Solution

The fourth proportional to 551,317.70, 772,632.10 and 551,317.70 is: 772,632.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,317.70 : 772,632.10 = 551,317.70 : x
  2. Step 2: Convert to fraction form
    551,317.70/772,632.10 = 551,317.70/x
  3. Step 3: Cross multiply
    551,317.70x = 772,632.10 × 551,317.70
  4. Step 4: Simplify right side
    551,317.70x = 425,965,752,318.17
  5. Step 5: Solve for x
    x = 425,965,752,318.17/551,317.70
  6. Step 6: Final answer
    x = 772,632.10

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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.