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Finding the Fourth Proportional to 669,007.66, 922,881.83 and 410,942.77

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Solution

The fourth proportional to 669,007.66, 922,881.83 and 410,942.77 is: 566,886.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,007.66 : 922,881.83 = 410,942.77 : x
  2. Step 2: Convert to fraction form
    669,007.66/922,881.83 = 410,942.77/x
  3. Step 3: Cross multiply
    669,007.66x = 922,881.83 × 410,942.77
  4. Step 4: Simplify right side
    669,007.66x = 379,251,614,323.02
  5. Step 5: Solve for x
    x = 379,251,614,323.02/669,007.66
  6. Step 6: Final answer
    x = 566,886.81

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Half scale
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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.