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Finding the Fourth Proportional to 563,801.66, 778,061.76 and 322,123.58

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Solution

The fourth proportional to 563,801.66, 778,061.76 and 322,123.58 is: 444,539.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,801.66 : 778,061.76 = 322,123.58 : x
  2. Step 2: Convert to fraction form
    563,801.66/778,061.76 = 322,123.58/x
  3. Step 3: Cross multiply
    563,801.66x = 778,061.76 × 322,123.58
  4. Step 4: Simplify right side
    563,801.66x = 250,632,039,592.30
  5. Step 5: Solve for x
    x = 250,632,039,592.30/563,801.66
  6. Step 6: Final answer
    x = 444,539.38

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.