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Finding the Fourth Proportional to 335,218.80, 502,828.20 and 260,569.20

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Solution

The fourth proportional to 335,218.80, 502,828.20 and 260,569.20 is: 390,853.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,218.80 : 502,828.20 = 260,569.20 : x
  2. Step 2: Convert to fraction form
    335,218.80/502,828.20 = 260,569.20/x
  3. Step 3: Cross multiply
    335,218.80x = 502,828.20 × 260,569.20
  4. Step 4: Simplify right side
    335,218.80x = 131,021,541,811.44
  5. Step 5: Solve for x
    x = 131,021,541,811.44/335,218.80
  6. Step 6: Final answer
    x = 390,853.80

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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.