Home / 839,505.20-1,158,483.40-457,523.76

Finding the Fourth Proportional to 839,505.20, 1,158,483.40 and 457,523.76

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Solution

The fourth proportional to 839,505.20, 1,158,483.40 and 457,523.76 is: 631,364.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,505.20 : 1,158,483.40 = 457,523.76 : x
  2. Step 2: Convert to fraction form
    839,505.20/1,158,483.40 = 457,523.76/x
  3. Step 3: Cross multiply
    839,505.20x = 1,158,483.40 × 457,523.76
  4. Step 4: Simplify right side
    839,505.20x = 530,033,681,065.58
  5. Step 5: Solve for x
    x = 530,033,681,065.58/839,505.20
  6. Step 6: Final answer
    x = 631,364.38

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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.