Home / 715,408.10-986,276.68-570,705.02

Finding the Fourth Proportional to 715,408.10, 986,276.68 and 570,705.02

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Solution

The fourth proportional to 715,408.10, 986,276.68 and 570,705.02 is: 786,785.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,408.10 : 986,276.68 = 570,705.02 : x
  2. Step 2: Convert to fraction form
    715,408.10/986,276.68 = 570,705.02/x
  3. Step 3: Cross multiply
    715,408.10x = 986,276.68 × 570,705.02
  4. Step 4: Simplify right side
    715,408.10x = 562,873,052,384.93
  5. Step 5: Solve for x
    x = 562,873,052,384.93/715,408.10
  6. Step 6: Final answer
    x = 786,785.97

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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.