Home / 685,576.74-947,081.52-547,574.34

Finding the Fourth Proportional to 685,576.74, 947,081.52 and 547,574.34

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Solution

The fourth proportional to 685,576.74, 947,081.52 and 547,574.34 is: 756,439.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,576.74 : 947,081.52 = 547,574.34 : x
  2. Step 2: Convert to fraction form
    685,576.74/947,081.52 = 547,574.34/x
  3. Step 3: Cross multiply
    685,576.74x = 947,081.52 × 547,574.34
  4. Step 4: Simplify right side
    685,576.74x = 518,597,538,240.20
  5. Step 5: Solve for x
    x = 518,597,538,240.20/685,576.74
  6. Step 6: Final answer
    x = 756,439.81

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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.