Home / 838,711.08-1,157,088.22-485,026.54

Finding the Fourth Proportional to 838,711.08, 1,157,088.22 and 485,026.54

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Solution

The fourth proportional to 838,711.08, 1,157,088.22 and 485,026.54 is: 669,144.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,711.08 : 1,157,088.22 = 485,026.54 : x
  2. Step 2: Convert to fraction form
    838,711.08/1,157,088.22 = 485,026.54/x
  3. Step 3: Cross multiply
    838,711.08x = 1,157,088.22 × 485,026.54
  4. Step 4: Simplify right side
    838,711.08x = 561,218,494,234.82
  5. Step 5: Solve for x
    x = 561,218,494,234.82/838,711.08
  6. Step 6: Final answer
    x = 669,144.01

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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.