Home / 839,455.93-1,158,415.39-457,474.51

Finding the Fourth Proportional to 839,455.93, 1,158,415.39 and 457,474.51

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Solution

The fourth proportional to 839,455.93, 1,158,415.39 and 457,474.51 is: 631,296.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,455.93 : 1,158,415.39 = 457,474.51 : x
  2. Step 2: Convert to fraction form
    839,455.93/1,158,415.39 = 457,474.51/x
  3. Step 3: Cross multiply
    839,455.93x = 1,158,415.39 × 457,474.51
  4. Step 4: Simplify right side
    839,455.93x = 529,945,512,916.71
  5. Step 5: Solve for x
    x = 529,945,512,916.71/839,455.93
  6. Step 6: Final answer
    x = 631,296.41

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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.