Home / 839,224.47-1,258,835.56-389,699.53

Finding the Fourth Proportional to 839,224.47, 1,258,835.56 and 389,699.53

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Solution

The fourth proportional to 839,224.47, 1,258,835.56 and 389,699.53 is: 584,548.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,224.47 : 1,258,835.56 = 389,699.53 : x
  2. Step 2: Convert to fraction form
    839,224.47/1,258,835.56 = 389,699.53/x
  3. Step 3: Cross multiply
    839,224.47x = 1,258,835.56 × 389,699.53
  4. Step 4: Simplify right side
    839,224.47x = 490,567,619,785.11
  5. Step 5: Solve for x
    x = 490,567,619,785.11/839,224.47
  6. Step 6: Final answer
    x = 584,548.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.