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Finding the Fourth Proportional to 356,955.84, 535,264.38 and 207,242.64

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Solution

The fourth proportional to 356,955.84, 535,264.38 and 207,242.64 is: 310,765.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,955.84 : 535,264.38 = 207,242.64 : x
  2. Step 2: Convert to fraction form
    356,955.84/535,264.38 = 207,242.64/x
  3. Step 3: Cross multiply
    356,955.84x = 535,264.38 × 207,242.64
  4. Step 4: Simplify right side
    356,955.84x = 110,929,603,209.16
  5. Step 5: Solve for x
    x = 110,929,603,209.16/356,955.84
  6. Step 6: Final answer
    x = 310,765.62

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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.