Home / 649,736.17-896,873.32-391,622.33

Finding the Fourth Proportional to 649,736.17, 896,873.32 and 391,622.33

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Solution

The fourth proportional to 649,736.17, 896,873.32 and 391,622.33 is: 540,581.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,736.17 : 896,873.32 = 391,622.33 : x
  2. Step 2: Convert to fraction form
    649,736.17/896,873.32 = 391,622.33/x
  3. Step 3: Cross multiply
    649,736.17x = 896,873.32 × 391,622.33
  4. Step 4: Simplify right side
    649,736.17x = 351,235,621,314.44
  5. Step 5: Solve for x
    x = 351,235,621,314.44/649,736.17
  6. Step 6: Final answer
    x = 540,581.91

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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.