Home / 839,418.57-1,158,363.87-457,437.15

Finding the Fourth Proportional to 839,418.57, 1,158,363.87 and 457,437.15

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Solution

The fourth proportional to 839,418.57, 1,158,363.87 and 457,437.15 is: 631,244.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,418.57 : 1,158,363.87 = 457,437.15 : x
  2. Step 2: Convert to fraction form
    839,418.57/1,158,363.87 = 457,437.15/x
  3. Step 3: Cross multiply
    839,418.57x = 1,158,363.87 × 457,437.15
  4. Step 4: Simplify right side
    839,418.57x = 529,878,667,355.77
  5. Step 5: Solve for x
    x = 529,878,667,355.77/839,418.57
  6. Step 6: Final answer
    x = 631,244.87

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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.