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Finding the Fourth Proportional to 672,353.93, 927,821.30 and 366,423.71

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Solution

The fourth proportional to 672,353.93, 927,821.30 and 366,423.71 is: 505,649.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,353.93 : 927,821.30 = 366,423.71 : x
  2. Step 2: Convert to fraction form
    672,353.93/927,821.30 = 366,423.71/x
  3. Step 3: Cross multiply
    672,353.93x = 927,821.30 × 366,423.71
  4. Step 4: Simplify right side
    672,353.93x = 339,975,716,491.80
  5. Step 5: Solve for x
    x = 339,975,716,491.80/672,353.93
  6. Step 6: Final answer
    x = 505,649.93

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Double scale
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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.