Home / 712,048.46-982,589.13-389,696.19

Finding the Fourth Proportional to 712,048.46, 982,589.13 and 389,696.19

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Solution

The fourth proportional to 712,048.46, 982,589.13 and 389,696.19 is: 537,760.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,048.46 : 982,589.13 = 389,696.19 : x
  2. Step 2: Convert to fraction form
    712,048.46/982,589.13 = 389,696.19/x
  3. Step 3: Cross multiply
    712,048.46x = 982,589.13 × 389,696.19
  4. Step 4: Simplify right side
    712,048.46x = 382,911,240,296.42
  5. Step 5: Solve for x
    x = 382,911,240,296.42/712,048.46
  6. Step 6: Final answer
    x = 537,760.09

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Double scale
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1.5x scale

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.