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Finding the Fourth Proportional to 702,065.07, 968,848.70 and 379,774.17

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Solution

The fourth proportional to 702,065.07, 968,848.70 and 379,774.17 is: 524,087.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,065.07 : 968,848.70 = 379,774.17 : x
  2. Step 2: Convert to fraction form
    702,065.07/968,848.70 = 379,774.17/x
  3. Step 3: Cross multiply
    702,065.07x = 968,848.70 × 379,774.17
  4. Step 4: Simplify right side
    702,065.07x = 367,943,708,999.21
  5. Step 5: Solve for x
    x = 367,943,708,999.21/702,065.07
  6. Step 6: Final answer
    x = 524,087.76

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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.