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Finding the Fourth Proportional to 621,810.40, 932,024.40 and 341,528.80

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Solution

The fourth proportional to 621,810.40, 932,024.40 and 341,528.80 is: 511,913.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,810.40 : 932,024.40 = 341,528.80 : x
  2. Step 2: Convert to fraction form
    621,810.40/932,024.40 = 341,528.80/x
  3. Step 3: Cross multiply
    621,810.40x = 932,024.40 × 341,528.80
  4. Step 4: Simplify right side
    621,810.40x = 318,313,174,902.72
  5. Step 5: Solve for x
    x = 318,313,174,902.72/621,810.40
  6. Step 6: Final answer
    x = 511,913.56

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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.