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Finding the Fourth Proportional to 688,299,081.03, 949,852,868.52 and 375,033,295

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Solution

The fourth proportional to 688,299,081.03, 949,852,868.52 and 375,033,295 is: 517,546,021.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,299,081.03 : 949,852,868.52 = 375,033,295 : x
  2. Step 2: Convert to fraction form
    688,299,081.03/949,852,868.52 = 375,033,295/x
  3. Step 3: Cross multiply
    688,299,081.03x = 949,852,868.52 × 375,033,295
  4. Step 4: Simplify right side
    688,299,081.03x = 356,226,451,046,257,344
  5. Step 5: Solve for x
    x = 356,226,451,046,257,344/688,299,081.03
  6. Step 6: Final answer
    x = 517,546,021.58

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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.