Home / 841,621.80-1,161,445.52-479,069

Finding the Fourth Proportional to 841,621.80, 1,161,445.52 and 479,069

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Solution

The fourth proportional to 841,621.80, 1,161,445.52 and 479,069 is: 661,119.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,621.80 : 1,161,445.52 = 479,069 : x
  2. Step 2: Convert to fraction form
    841,621.80/1,161,445.52 = 479,069/x
  3. Step 3: Cross multiply
    841,621.80x = 1,161,445.52 × 479,069
  4. Step 4: Simplify right side
    841,621.80x = 556,412,543,820.88
  5. Step 5: Solve for x
    x = 556,412,543,820.88/841,621.80
  6. Step 6: Final answer
    x = 661,119.45

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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.