Home / 991,454.06-1,368,203.04-561,816.29

Finding the Fourth Proportional to 991,454.06, 1,368,203.04 and 561,816.29

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Solution

The fourth proportional to 991,454.06, 1,368,203.04 and 561,816.29 is: 775,304.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,454.06 : 1,368,203.04 = 561,816.29 : x
  2. Step 2: Convert to fraction form
    991,454.06/1,368,203.04 = 561,816.29/x
  3. Step 3: Cross multiply
    991,454.06x = 1,368,203.04 × 561,816.29
  4. Step 4: Simplify right side
    991,454.06x = 768,678,749,058.51
  5. Step 5: Solve for x
    x = 768,678,749,058.51/991,454.06
  6. Step 6: Final answer
    x = 775,304.46

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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.