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Finding the Fourth Proportional to 652,418,581.40, 978,627,872.10 and 627,336,315.80

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Solution

The fourth proportional to 652,418,581.40, 978,627,872.10 and 627,336,315.80 is: 941,004,473.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,418,581.40 : 978,627,872.10 = 627,336,315.80 : x
  2. Step 2: Convert to fraction form
    652,418,581.40/978,627,872.10 = 627,336,315.80/x
  3. Step 3: Cross multiply
    652,418,581.40x = 978,627,872.10 × 627,336,315.80
  4. Step 4: Simplify right side
    652,418,581.40x = 613,928,803,822,407,552
  5. Step 5: Solve for x
    x = 613,928,803,822,407,552/652,418,581.40
  6. Step 6: Final answer
    x = 941,004,473.70

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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.