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Finding the Fourth Proportional to 667,623.03, 996,578.10 and 618,284.31

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Solution

The fourth proportional to 667,623.03, 996,578.10 and 618,284.31 is: 922,928.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,623.03 : 996,578.10 = 618,284.31 : x
  2. Step 2: Convert to fraction form
    667,623.03/996,578.10 = 618,284.31/x
  3. Step 3: Cross multiply
    667,623.03x = 996,578.10 × 618,284.31
  4. Step 4: Simplify right side
    667,623.03x = 616,168,602,919.61
  5. Step 5: Solve for x
    x = 616,168,602,919.61/667,623.03
  6. Step 6: Final answer
    x = 922,928.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.