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Finding the Fourth Proportional to 675,421.60, 933,862.80 and 591,440.80

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Solution

The fourth proportional to 675,421.60, 933,862.80 and 591,440.80 is: 817,747.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,421.60 : 933,862.80 = 591,440.80 : x
  2. Step 2: Convert to fraction form
    675,421.60/933,862.80 = 591,440.80/x
  3. Step 3: Cross multiply
    675,421.60x = 933,862.80 × 591,440.80
  4. Step 4: Simplify right side
    675,421.60x = 552,324,561,522.24
  5. Step 5: Solve for x
    x = 552,324,561,522.24/675,421.60
  6. Step 6: Final answer
    x = 817,747.85

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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.