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Finding the Fourth Proportional to 703,545.40, 970,896.54 and 381,255.76

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Solution

The fourth proportional to 703,545.40, 970,896.54 and 381,255.76 is: 526,135.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,545.40 : 970,896.54 = 381,255.76 : x
  2. Step 2: Convert to fraction form
    703,545.40/970,896.54 = 381,255.76/x
  3. Step 3: Cross multiply
    703,545.40x = 970,896.54 × 381,255.76
  4. Step 4: Simplify right side
    703,545.40x = 370,159,898,239.07
  5. Step 5: Solve for x
    x = 370,159,898,239.07/703,545.40
  6. Step 6: Final answer
    x = 526,135.06

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1.5x scale

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.