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Finding the Fourth Proportional to 621,710.60, 933,026.70 and 411,278.60

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Solution

The fourth proportional to 621,710.60, 933,026.70 and 411,278.60 is: 617,222.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,710.60 : 933,026.70 = 411,278.60 : x
  2. Step 2: Convert to fraction form
    621,710.60/933,026.70 = 411,278.60/x
  3. Step 3: Cross multiply
    621,710.60x = 933,026.70 × 411,278.60
  4. Step 4: Simplify right side
    621,710.60x = 383,733,914,938.62
  5. Step 5: Solve for x
    x = 383,733,914,938.62/621,710.60
  6. Step 6: Final answer
    x = 617,222.73

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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.