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Finding the Fourth Proportional to 702,176.70, 969,119.76 and 430,395.78

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Solution

The fourth proportional to 702,176.70, 969,119.76 and 430,395.78 is: 594,017.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,176.70 : 969,119.76 = 430,395.78 : x
  2. Step 2: Convert to fraction form
    702,176.70/969,119.76 = 430,395.78/x
  3. Step 3: Cross multiply
    702,176.70x = 969,119.76 × 430,395.78
  4. Step 4: Simplify right side
    702,176.70x = 417,105,055,018.61
  5. Step 5: Solve for x
    x = 417,105,055,018.61/702,176.70
  6. Step 6: Final answer
    x = 594,017.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.