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Finding the Fourth Proportional to 367,790, 551,684.16 and 97,918.20

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Solution

The fourth proportional to 367,790, 551,684.16 and 97,918.20 is: 146,877.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,790 : 551,684.16 = 97,918.20 : x
  2. Step 2: Convert to fraction form
    367,790/551,684.16 = 97,918.20/x
  3. Step 3: Cross multiply
    367,790x = 551,684.16 × 97,918.20
  4. Step 4: Simplify right side
    367,790x = 54,019,919,915.71
  5. Step 5: Solve for x
    x = 54,019,919,915.71/367,790
  6. Step 6: Final answer
    x = 146,877.08

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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.