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Finding the Fourth Proportional to 978,050.80, 1,463,965.80 and 698,114.80

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Solution

The fourth proportional to 978,050.80, 1,463,965.80 and 698,114.80 is: 1,044,952.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,050.80 : 1,463,965.80 = 698,114.80 : x
  2. Step 2: Convert to fraction form
    978,050.80/1,463,965.80 = 698,114.80/x
  3. Step 3: Cross multiply
    978,050.80x = 1,463,965.80 × 698,114.80
  4. Step 4: Simplify right side
    978,050.80x = 1,022,016,191,673.84
  5. Step 5: Solve for x
    x = 1,022,016,191,673.84/978,050.80
  6. Step 6: Final answer
    x = 1,044,952.05

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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.