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Finding the Fourth Proportional to 517,030.74, 774,753.93 and 347,925.42

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Solution

The fourth proportional to 517,030.74, 774,753.93 and 347,925.42 is: 521,355.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,030.74 : 774,753.93 = 347,925.42 : x
  2. Step 2: Convert to fraction form
    517,030.74/774,753.93 = 347,925.42/x
  3. Step 3: Cross multiply
    517,030.74x = 774,753.93 × 347,925.42
  4. Step 4: Simplify right side
    517,030.74x = 269,556,586,491.90
  5. Step 5: Solve for x
    x = 269,556,586,491.90/517,030.74
  6. Step 6: Final answer
    x = 521,355.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.