Home / 719,621.76-993,165.50-417,815.76

Finding the Fourth Proportional to 719,621.76, 993,165.50 and 417,815.76

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Solution

The fourth proportional to 719,621.76, 993,165.50 and 417,815.76 is: 576,636.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,621.76 : 993,165.50 = 417,815.76 : x
  2. Step 2: Convert to fraction form
    719,621.76/993,165.50 = 417,815.76/x
  3. Step 3: Cross multiply
    719,621.76x = 993,165.50 × 417,815.76
  4. Step 4: Simplify right side
    719,621.76x = 414,960,198,188.28
  5. Step 5: Solve for x
    x = 414,960,198,188.28/719,621.76
  6. Step 6: Final answer
    x = 576,636.53

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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.