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Finding the Fourth Proportional to 690,167.25, 952,452 and 375,860.25

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Solution

The fourth proportional to 690,167.25, 952,452 and 375,860.25 is: 518,698.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,167.25 : 952,452 = 375,860.25 : x
  2. Step 2: Convert to fraction form
    690,167.25/952,452 = 375,860.25/x
  3. Step 3: Cross multiply
    690,167.25x = 952,452 × 375,860.25
  4. Step 4: Simplify right side
    690,167.25x = 357,988,846,833
  5. Step 5: Solve for x
    x = 357,988,846,833/690,167.25
  6. Step 6: Final answer
    x = 518,698.69

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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.