Home / 839,380.86-1,158,345.63-457,407.54

Finding the Fourth Proportional to 839,380.86, 1,158,345.63 and 457,407.54

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Solution

The fourth proportional to 839,380.86, 1,158,345.63 and 457,407.54 is: 631,222.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,380.86 : 1,158,345.63 = 457,407.54 : x
  2. Step 2: Convert to fraction form
    839,380.86/1,158,345.63 = 457,407.54/x
  3. Step 3: Cross multiply
    839,380.86x = 1,158,345.63 × 457,407.54
  4. Step 4: Simplify right side
    839,380.86x = 529,836,025,088.05
  5. Step 5: Solve for x
    x = 529,836,025,088.05/839,380.86
  6. Step 6: Final answer
    x = 631,222.43

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Double scale
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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.