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Finding the Fourth Proportional to 335,220.30, 502,830.45 and 260,570.70

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Solution

The fourth proportional to 335,220.30, 502,830.45 and 260,570.70 is: 390,856.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,220.30 : 502,830.45 = 260,570.70 : x
  2. Step 2: Convert to fraction form
    335,220.30/502,830.45 = 260,570.70/x
  3. Step 3: Cross multiply
    335,220.30x = 502,830.45 × 260,570.70
  4. Step 4: Simplify right side
    335,220.30x = 131,022,882,337.82
  5. Step 5: Solve for x
    x = 131,022,882,337.82/335,220.30
  6. Step 6: Final answer
    x = 390,856.05

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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.