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Finding the Fourth Proportional to 301,428.48, 416,014.56 and 180,574.86

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Solution

The fourth proportional to 301,428.48, 416,014.56 and 180,574.86 is: 249,219.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,428.48 : 416,014.56 = 180,574.86 : x
  2. Step 2: Convert to fraction form
    301,428.48/416,014.56 = 180,574.86/x
  3. Step 3: Cross multiply
    301,428.48x = 416,014.56 × 180,574.86
  4. Step 4: Simplify right side
    301,428.48x = 75,121,770,929.96
  5. Step 5: Solve for x
    x = 75,121,770,929.96/301,428.48
  6. Step 6: Final answer
    x = 249,219.22

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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.