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Finding the Fourth Proportional to 715,408.33, 986,276.99 and 570,705.24

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Solution

The fourth proportional to 715,408.33, 986,276.99 and 570,705.24 is: 786,786.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,408.33 : 986,276.99 = 570,705.24 : x
  2. Step 2: Convert to fraction form
    715,408.33/986,276.99 = 570,705.24/x
  3. Step 3: Cross multiply
    715,408.33x = 986,276.99 × 570,705.24
  4. Step 4: Simplify right side
    715,408.33x = 562,873,443,430.90
  5. Step 5: Solve for x
    x = 562,873,443,430.90/715,408.33
  6. Step 6: Final answer
    x = 786,786.26

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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.