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Finding the Fourth Proportional to 333,335.20, 500,002.80 and 133,686.40

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Solution

The fourth proportional to 333,335.20, 500,002.80 and 133,686.40 is: 200,529.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,335.20 : 500,002.80 = 133,686.40 : x
  2. Step 2: Convert to fraction form
    333,335.20/500,002.80 = 133,686.40/x
  3. Step 3: Cross multiply
    333,335.20x = 500,002.80 × 133,686.40
  4. Step 4: Simplify right side
    333,335.20x = 66,843,574,321.92
  5. Step 5: Solve for x
    x = 66,843,574,321.92/333,335.20
  6. Step 6: Final answer
    x = 200,529.60

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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.