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Finding the Fourth Proportional to 595,510.15, 821,711.49 and 353,786.51

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Solution

The fourth proportional to 595,510.15, 821,711.49 and 353,786.51 is: 488,170.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    595,510.15 : 821,711.49 = 353,786.51 : x
  2. Step 2: Convert to fraction form
    595,510.15/821,711.49 = 353,786.51/x
  3. Step 3: Cross multiply
    595,510.15x = 821,711.49 × 353,786.51
  4. Step 4: Simplify right side
    595,510.15x = 290,710,436,165.44
  5. Step 5: Solve for x
    x = 290,710,436,165.44/595,510.15
  6. Step 6: Final answer
    x = 488,170.42

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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.