Home / 641,587.26-885,376.47-355,090.14

Finding the Fourth Proportional to 641,587.26, 885,376.47 and 355,090.14

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Solution

The fourth proportional to 641,587.26, 885,376.47 and 355,090.14 is: 490,016.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,587.26 : 885,376.47 = 355,090.14 : x
  2. Step 2: Convert to fraction form
    641,587.26/885,376.47 = 355,090.14/x
  3. Step 3: Cross multiply
    641,587.26x = 885,376.47 × 355,090.14
  4. Step 4: Simplify right side
    641,587.26x = 314,388,454,685.01
  5. Step 5: Solve for x
    x = 314,388,454,685.01/641,587.26
  6. Step 6: Final answer
    x = 490,016.67

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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.