Home / 938,534.81-1,296,247.24-636,203.93

Finding the Fourth Proportional to 938,534.81, 1,296,247.24 and 636,203.93

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Solution

The fourth proportional to 938,534.81, 1,296,247.24 and 636,203.93 is: 878,686.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,534.81 : 1,296,247.24 = 636,203.93 : x
  2. Step 2: Convert to fraction form
    938,534.81/1,296,247.24 = 636,203.93/x
  3. Step 3: Cross multiply
    938,534.81x = 1,296,247.24 × 636,203.93
  4. Step 4: Simplify right side
    938,534.81x = 824,677,592,375.53
  5. Step 5: Solve for x
    x = 824,677,592,375.53/938,534.81
  6. Step 6: Final answer
    x = 878,686.20

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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.