Home / 642,356.66-963,582.78-193,041.56

Finding the Fourth Proportional to 642,356.66, 963,582.78 and 193,041.56

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Solution

The fourth proportional to 642,356.66, 963,582.78 and 193,041.56 is: 289,576.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,356.66 : 963,582.78 = 193,041.56 : x
  2. Step 2: Convert to fraction form
    642,356.66/963,582.78 = 193,041.56/x
  3. Step 3: Cross multiply
    642,356.66x = 963,582.78 × 193,041.56
  4. Step 4: Simplify right side
    642,356.66x = 186,011,523,040.34
  5. Step 5: Solve for x
    x = 186,011,523,040.34/642,356.66
  6. Step 6: Final answer
    x = 289,576.70

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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.