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Finding the Fourth Proportional to 515,200.30, 772,800.45 and 235,264.30

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Solution

The fourth proportional to 515,200.30, 772,800.45 and 235,264.30 is: 352,896.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,200.30 : 772,800.45 = 235,264.30 : x
  2. Step 2: Convert to fraction form
    515,200.30/772,800.45 = 235,264.30/x
  3. Step 3: Cross multiply
    515,200.30x = 772,800.45 × 235,264.30
  4. Step 4: Simplify right side
    515,200.30x = 181,812,356,908.94
  5. Step 5: Solve for x
    x = 181,812,356,908.94/515,200.30
  6. Step 6: Final answer
    x = 352,896.45

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Double scale
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Similar ratio
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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.