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Finding the Fourth Proportional to 605,072.60, 907,608.90 and 577,516.40

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Solution

The fourth proportional to 605,072.60, 907,608.90 and 577,516.40 is: 866,274.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,072.60 : 907,608.90 = 577,516.40 : x
  2. Step 2: Convert to fraction form
    605,072.60/907,608.90 = 577,516.40/x
  3. Step 3: Cross multiply
    605,072.60x = 907,608.90 × 577,516.40
  4. Step 4: Simplify right side
    605,072.60x = 524,159,024,535.96
  5. Step 5: Solve for x
    x = 524,159,024,535.96/605,072.60
  6. Step 6: Final answer
    x = 866,274.60

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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.