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Finding the Fourth Proportional to 525,792.60, 789,207.30 and 259,853.40

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Solution

The fourth proportional to 525,792.60, 789,207.30 and 259,853.40 is: 390,036.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,792.60 : 789,207.30 = 259,853.40 : x
  2. Step 2: Convert to fraction form
    525,792.60/789,207.30 = 259,853.40/x
  3. Step 3: Cross multiply
    525,792.60x = 789,207.30 × 259,853.40
  4. Step 4: Simplify right side
    525,792.60x = 205,078,200,209.82
  5. Step 5: Solve for x
    x = 205,078,200,209.82/525,792.60
  6. Step 6: Final answer
    x = 390,036.30

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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.