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Finding the Fourth Proportional to 407,753.87, 562,697.01 and 223,995.51

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Solution

The fourth proportional to 407,753.87, 562,697.01 and 223,995.51 is: 309,111.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,753.87 : 562,697.01 = 223,995.51 : x
  2. Step 2: Convert to fraction form
    407,753.87/562,697.01 = 223,995.51/x
  3. Step 3: Cross multiply
    407,753.87x = 562,697.01 × 223,995.51
  4. Step 4: Simplify right side
    407,753.87x = 126,041,603,730.43
  5. Step 5: Solve for x
    x = 126,041,603,730.43/407,753.87
  6. Step 6: Final answer
    x = 309,111.98

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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.