Home / 638,491.04-881,117.35-366,576.47

Finding the Fourth Proportional to 638,491.04, 881,117.35 and 366,576.47

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Solution

The fourth proportional to 638,491.04, 881,117.35 and 366,576.47 is: 505,875.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,491.04 : 881,117.35 = 366,576.47 : x
  2. Step 2: Convert to fraction form
    638,491.04/881,117.35 = 366,576.47/x
  3. Step 3: Cross multiply
    638,491.04x = 881,117.35 × 366,576.47
  4. Step 4: Simplify right side
    638,491.04x = 322,996,882,496.73
  5. Step 5: Solve for x
    x = 322,996,882,496.73/638,491.04
  6. Step 6: Final answer
    x = 505,875.36

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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.