Home / 710,458.18-1,066,107.60-261,494.32

Finding the Fourth Proportional to 710,458.18, 1,066,107.60 and 261,494.32

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Solution

The fourth proportional to 710,458.18, 1,066,107.60 and 261,494.32 is: 392,396.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,458.18 : 1,066,107.60 = 261,494.32 : x
  2. Step 2: Convert to fraction form
    710,458.18/1,066,107.60 = 261,494.32/x
  3. Step 3: Cross multiply
    710,458.18x = 1,066,107.60 × 261,494.32
  4. Step 4: Simplify right side
    710,458.18x = 278,781,081,908.83
  5. Step 5: Solve for x
    x = 278,781,081,908.83/710,458.18
  6. Step 6: Final answer
    x = 392,396.19

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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.