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Finding the Fourth Proportional to 1,322,588.66, 1,984,444.65 and 722,849.13

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Solution

The fourth proportional to 1,322,588.66, 1,984,444.65 and 722,849.13 is: 1,084,580.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,322,588.66 : 1,984,444.65 = 722,849.13 : x
  2. Step 2: Convert to fraction form
    1,322,588.66/1,984,444.65 = 722,849.13/x
  3. Step 3: Cross multiply
    1,322,588.66x = 1,984,444.65 × 722,849.13
  4. Step 4: Simplify right side
    1,322,588.66x = 1,434,454,088,785.65
  5. Step 5: Solve for x
    x = 1,434,454,088,785.65/1,322,588.66
  6. Step 6: Final answer
    x = 1,084,580.67

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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.