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Finding the Fourth Proportional to 502,760.84, 693,807.04 and 285,010.60

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Solution

The fourth proportional to 502,760.84, 693,807.04 and 285,010.60 is: 393,312.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,760.84 : 693,807.04 = 285,010.60 : x
  2. Step 2: Convert to fraction form
    502,760.84/693,807.04 = 285,010.60/x
  3. Step 3: Cross multiply
    502,760.84x = 693,807.04 × 285,010.60
  4. Step 4: Simplify right side
    502,760.84x = 197,742,360,754.62
  5. Step 5: Solve for x
    x = 197,742,360,754.62/502,760.84
  6. Step 6: Final answer
    x = 393,312.97

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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.