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Finding the Fourth Proportional to 345,774.42, 477,107.42 and 192,800.45

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Solution

The fourth proportional to 345,774.42, 477,107.42 and 192,800.45 is: 266,030.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,774.42 : 477,107.42 = 192,800.45 : x
  2. Step 2: Convert to fraction form
    345,774.42/477,107.42 = 192,800.45/x
  3. Step 3: Cross multiply
    345,774.42x = 477,107.42 × 192,800.45
  4. Step 4: Simplify right side
    345,774.42x = 91,986,525,503.11
  5. Step 5: Solve for x
    x = 91,986,525,503.11/345,774.42
  6. Step 6: Final answer
    x = 266,030.45

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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.