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Finding the Fourth Proportional to 1,094,931.80, 1,640,064.90 and 884,979.80

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Solution

The fourth proportional to 1,094,931.80, 1,640,064.90 and 884,979.80 is: 1,325,584.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,094,931.80 : 1,640,064.90 = 884,979.80 : x
  2. Step 2: Convert to fraction form
    1,094,931.80/1,640,064.90 = 884,979.80/x
  3. Step 3: Cross multiply
    1,094,931.80x = 1,640,064.90 × 884,979.80
  4. Step 4: Simplify right side
    1,094,931.80x = 1,451,424,307,189.02
  5. Step 5: Solve for x
    x = 1,451,424,307,189.02/1,094,931.80
  6. Step 6: Final answer
    x = 1,325,584.21

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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.