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Finding the Fourth Proportional to 674,555.54, 930,945.57 and 372,807.86

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Solution

The fourth proportional to 674,555.54, 930,945.57 and 372,807.86 is: 514,507.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,555.54 : 930,945.57 = 372,807.86 : x
  2. Step 2: Convert to fraction form
    674,555.54/930,945.57 = 372,807.86/x
  3. Step 3: Cross multiply
    674,555.54x = 930,945.57 × 372,807.86
  4. Step 4: Simplify right side
    674,555.54x = 347,063,825,728.18
  5. Step 5: Solve for x
    x = 347,063,825,728.18/674,555.54
  6. Step 6: Final answer
    x = 514,507.41

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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.