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Finding the Fourth Proportional to 431,840.88, 595,488.24 and 371,615.76

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Solution

The fourth proportional to 431,840.88, 595,488.24 and 371,615.76 is: 512,440.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,840.88 : 595,488.24 = 371,615.76 : x
  2. Step 2: Convert to fraction form
    431,840.88/595,488.24 = 371,615.76/x
  3. Step 3: Cross multiply
    431,840.88x = 595,488.24 × 371,615.76
  4. Step 4: Simplify right side
    431,840.88x = 221,292,814,878.66
  5. Step 5: Solve for x
    x = 221,292,814,878.66/431,840.88
  6. Step 6: Final answer
    x = 512,440.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.