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Finding the Fourth Proportional to 333,625.80, 500,438.70 and 191,908.20

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Solution

The fourth proportional to 333,625.80, 500,438.70 and 191,908.20 is: 287,862.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,625.80 : 500,438.70 = 191,908.20 : x
  2. Step 2: Convert to fraction form
    333,625.80/500,438.70 = 191,908.20/x
  3. Step 3: Cross multiply
    333,625.80x = 500,438.70 × 191,908.20
  4. Step 4: Simplify right side
    333,625.80x = 96,038,290,127.34
  5. Step 5: Solve for x
    x = 96,038,290,127.34/333,625.80
  6. Step 6: Final answer
    x = 287,862.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.