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Finding the Fourth Proportional to 648,335.67, 893,632.39 and 433,397.31

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Solution

The fourth proportional to 648,335.67, 893,632.39 and 433,397.31 is: 597,372.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,335.67 : 893,632.39 = 433,397.31 : x
  2. Step 2: Convert to fraction form
    648,335.67/893,632.39 = 433,397.31/x
  3. Step 3: Cross multiply
    648,335.67x = 893,632.39 × 433,397.31
  4. Step 4: Simplify right side
    648,335.67x = 387,297,873,954.87
  5. Step 5: Solve for x
    x = 387,297,873,954.87/648,335.67
  6. Step 6: Final answer
    x = 597,372.46

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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.