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Finding the Fourth Proportional to 578,578.88, 798,253.12 and 374,786.02

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Solution

The fourth proportional to 578,578.88, 798,253.12 and 374,786.02 is: 517,084.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,578.88 : 798,253.12 = 374,786.02 : x
  2. Step 2: Convert to fraction form
    578,578.88/798,253.12 = 374,786.02/x
  3. Step 3: Cross multiply
    578,578.88x = 798,253.12 × 374,786.02
  4. Step 4: Simplify right side
    578,578.88x = 299,174,106,864.79
  5. Step 5: Solve for x
    x = 299,174,106,864.79/578,578.88
  6. Step 6: Final answer
    x = 517,084.39

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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.