Home / 649,303.20-896,314.32-394,735.68

Finding the Fourth Proportional to 649,303.20, 896,314.32 and 394,735.68

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Solution

The fourth proportional to 649,303.20, 896,314.32 and 394,735.68 is: 544,902.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,303.20 : 896,314.32 = 394,735.68 : x
  2. Step 2: Convert to fraction form
    649,303.20/896,314.32 = 394,735.68/x
  3. Step 3: Cross multiply
    649,303.20x = 896,314.32 × 394,735.68
  4. Step 4: Simplify right side
    649,303.20x = 353,807,242,598.94
  5. Step 5: Solve for x
    x = 353,807,242,598.94/649,303.20
  6. Step 6: Final answer
    x = 544,902.97

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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.