Home / 839,385.18-1,158,317.82-457,403.76

Finding the Fourth Proportional to 839,385.18, 1,158,317.82 and 457,403.76

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Solution

The fourth proportional to 839,385.18, 1,158,317.82 and 457,403.76 is: 631,198.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,385.18 : 1,158,317.82 = 457,403.76 : x
  2. Step 2: Convert to fraction form
    839,385.18/1,158,317.82 = 457,403.76/x
  3. Step 3: Cross multiply
    839,385.18x = 1,158,317.82 × 457,403.76
  4. Step 4: Simplify right side
    839,385.18x = 529,818,926,143.00
  5. Step 5: Solve for x
    x = 529,818,926,143.00/839,385.18
  6. Step 6: Final answer
    x = 631,198.81

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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.