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Finding the Fourth Proportional to 303,547.54, 455,241.97 and 90,258.01

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Solution

The fourth proportional to 303,547.54, 455,241.97 and 90,258.01 is: 135,363.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,547.54 : 455,241.97 = 90,258.01 : x
  2. Step 2: Convert to fraction form
    303,547.54/455,241.97 = 90,258.01/x
  3. Step 3: Cross multiply
    303,547.54x = 455,241.97 × 90,258.01
  4. Step 4: Simplify right side
    303,547.54x = 41,089,231,553.18
  5. Step 5: Solve for x
    x = 41,089,231,553.18/303,547.54
  6. Step 6: Final answer
    x = 135,363.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.