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Finding the Fourth Proportional to 343,780.53, 474,408 and 190,818.27

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Solution

The fourth proportional to 343,780.53, 474,408 and 190,818.27 is: 263,324.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,780.53 : 474,408 = 190,818.27 : x
  2. Step 2: Convert to fraction form
    343,780.53/474,408 = 190,818.27/x
  3. Step 3: Cross multiply
    343,780.53x = 474,408 × 190,818.27
  4. Step 4: Simplify right side
    343,780.53x = 90,525,713,834.16
  5. Step 5: Solve for x
    x = 90,525,713,834.16/343,780.53
  6. Step 6: Final answer
    x = 263,324.14

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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.