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Finding the Fourth Proportional to 710,380.26, 980,344.02 and 424,066.50

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Solution

The fourth proportional to 710,380.26, 980,344.02 and 424,066.50 is: 585,223.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,380.26 : 980,344.02 = 424,066.50 : x
  2. Step 2: Convert to fraction form
    710,380.26/980,344.02 = 424,066.50/x
  3. Step 3: Cross multiply
    710,380.26x = 980,344.02 × 424,066.50
  4. Step 4: Simplify right side
    710,380.26x = 415,731,057,357.33
  5. Step 5: Solve for x
    x = 415,731,057,357.33/710,380.26
  6. Step 6: Final answer
    x = 585,223.27

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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.