Home / 839,431.36-1,158,415.44-457,458.20

Finding the Fourth Proportional to 839,431.36, 1,158,415.44 and 457,458.20

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Solution

The fourth proportional to 839,431.36, 1,158,415.44 and 457,458.20 is: 631,292.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,431.36 : 1,158,415.44 = 457,458.20 : x
  2. Step 2: Convert to fraction form
    839,431.36/1,158,415.44 = 457,458.20/x
  3. Step 3: Cross multiply
    839,431.36x = 1,158,415.44 × 457,458.20
  4. Step 4: Simplify right side
    839,431.36x = 529,926,642,034.61
  5. Step 5: Solve for x
    x = 529,926,642,034.61/839,431.36
  6. Step 6: Final answer
    x = 631,292.40

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Double scale
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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.