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Finding the Fourth Proportional to 571,854.88, 856,426.38 and 453,144.52

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Solution

The fourth proportional to 571,854.88, 856,426.38 and 453,144.52 is: 678,642.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,854.88 : 856,426.38 = 453,144.52 : x
  2. Step 2: Convert to fraction form
    571,854.88/856,426.38 = 453,144.52/x
  3. Step 3: Cross multiply
    571,854.88x = 856,426.38 × 453,144.52
  4. Step 4: Simplify right side
    571,854.88x = 388,084,920,880.44
  5. Step 5: Solve for x
    x = 388,084,920,880.44/571,854.88
  6. Step 6: Final answer
    x = 678,642.32

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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.