Home / 839,406.84-1,158,394.86-457,433.88

Finding the Fourth Proportional to 839,406.84, 1,158,394.86 and 457,433.88

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Solution

The fourth proportional to 839,406.84, 1,158,394.86 and 457,433.88 is: 631,266.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,406.84 : 1,158,394.86 = 457,433.88 : x
  2. Step 2: Convert to fraction form
    839,406.84/1,158,394.86 = 457,433.88/x
  3. Step 3: Cross multiply
    839,406.84x = 1,158,394.86 × 457,433.88
  4. Step 4: Simplify right side
    839,406.84x = 529,889,055,381.86
  5. Step 5: Solve for x
    x = 529,889,055,381.86/839,406.84
  6. Step 6: Final answer
    x = 631,266.07

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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.