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Finding the Fourth Proportional to 674,555.94, 930,850.65 and 372,730.50

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Solution

The fourth proportional to 674,555.94, 930,850.65 and 372,730.50 is: 514,347.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,555.94 : 930,850.65 = 372,730.50 : x
  2. Step 2: Convert to fraction form
    674,555.94/930,850.65 = 372,730.50/x
  3. Step 3: Cross multiply
    674,555.94x = 930,850.65 × 372,730.50
  4. Step 4: Simplify right side
    674,555.94x = 346,956,428,199.83
  5. Step 5: Solve for x
    x = 346,956,428,199.83/674,555.94
  6. Step 6: Final answer
    x = 514,347.90

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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.