Home / 666,652.21-919,973.36-360,721.89

Finding the Fourth Proportional to 666,652.21, 919,973.36 and 360,721.89

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Solution

The fourth proportional to 666,652.21, 919,973.36 and 360,721.89 is: 497,792.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,652.21 : 919,973.36 = 360,721.89 : x
  2. Step 2: Convert to fraction form
    666,652.21/919,973.36 = 360,721.89/x
  3. Step 3: Cross multiply
    666,652.21x = 919,973.36 × 360,721.89
  4. Step 4: Simplify right side
    666,652.21x = 331,854,530,070.66
  5. Step 5: Solve for x
    x = 331,854,530,070.66/666,652.21
  6. Step 6: Final answer
    x = 497,792.59

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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.