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Finding the Fourth Proportional to 691,360.79, 954,134.71 and 381,324.11

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Solution

The fourth proportional to 691,360.79, 954,134.71 and 381,324.11 is: 526,258.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,360.79 : 954,134.71 = 381,324.11 : x
  2. Step 2: Convert to fraction form
    691,360.79/954,134.71 = 381,324.11/x
  3. Step 3: Cross multiply
    691,360.79x = 954,134.71 × 381,324.11
  4. Step 4: Simplify right side
    691,360.79x = 363,834,563,386.87
  5. Step 5: Solve for x
    x = 363,834,563,386.87/691,360.79
  6. Step 6: Final answer
    x = 526,258.61

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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.