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Finding the Fourth Proportional to 353,137.99, 487,328.02 and 191,993.01

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Solution

The fourth proportional to 353,137.99, 487,328.02 and 191,993.01 is: 264,949.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,137.99 : 487,328.02 = 191,993.01 : x
  2. Step 2: Convert to fraction form
    353,137.99/487,328.02 = 191,993.01/x
  3. Step 3: Cross multiply
    353,137.99x = 487,328.02 × 191,993.01
  4. Step 4: Simplify right side
    353,137.99x = 93,563,573,417.14
  5. Step 5: Solve for x
    x = 93,563,573,417.14/353,137.99
  6. Step 6: Final answer
    x = 264,949.05

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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.