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Finding the Fourth Proportional to 703,307.25, 970,564.41 and 381,019.59

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Solution

The fourth proportional to 703,307.25, 970,564.41 and 381,019.59 is: 525,807.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,307.25 : 970,564.41 = 381,019.59 : x
  2. Step 2: Convert to fraction form
    703,307.25/970,564.41 = 381,019.59/x
  3. Step 3: Cross multiply
    703,307.25x = 970,564.41 × 381,019.59
  4. Step 4: Simplify right side
    703,307.25x = 369,804,053,566.79
  5. Step 5: Solve for x
    x = 369,804,053,566.79/703,307.25
  6. Step 6: Final answer
    x = 525,807.25

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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.