Home / 664,707.36-916,371.25-561,768.36

Finding the Fourth Proportional to 664,707.36, 916,371.25 and 561,768.36

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Solution

The fourth proportional to 664,707.36, 916,371.25 and 561,768.36 is: 774,458.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,707.36 : 916,371.25 = 561,768.36 : x
  2. Step 2: Convert to fraction form
    664,707.36/916,371.25 = 561,768.36/x
  3. Step 3: Cross multiply
    664,707.36x = 916,371.25 × 561,768.36
  4. Step 4: Simplify right side
    664,707.36x = 514,788,374,263.65
  5. Step 5: Solve for x
    x = 514,788,374,263.65/664,707.36
  6. Step 6: Final answer
    x = 774,458.66

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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.