Home / 839,353.85-1,158,309.79-457,380.63

Finding the Fourth Proportional to 839,353.85, 1,158,309.79 and 457,380.63

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Solution

The fourth proportional to 839,353.85, 1,158,309.79 and 457,380.63 is: 631,186.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,353.85 : 1,158,309.79 = 457,380.63 : x
  2. Step 2: Convert to fraction form
    839,353.85/1,158,309.79 = 457,380.63/x
  3. Step 3: Cross multiply
    839,353.85x = 1,158,309.79 × 457,380.63
  4. Step 4: Simplify right side
    839,353.85x = 529,788,460,341.92
  5. Step 5: Solve for x
    x = 529,788,460,341.92/839,353.85
  6. Step 6: Final answer
    x = 631,186.07

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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.