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Finding the Fourth Proportional to 613,065.60, 919,598.40 and 545,414.40

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Solution

The fourth proportional to 613,065.60, 919,598.40 and 545,414.40 is: 818,121.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,065.60 : 919,598.40 = 545,414.40 : x
  2. Step 2: Convert to fraction form
    613,065.60/919,598.40 = 545,414.40/x
  3. Step 3: Cross multiply
    613,065.60x = 919,598.40 × 545,414.40
  4. Step 4: Simplify right side
    613,065.60x = 501,562,209,576.96
  5. Step 5: Solve for x
    x = 501,562,209,576.96/613,065.60
  6. Step 6: Final answer
    x = 818,121.60

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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.