Home / 839,355.97-1,158,312.72-457,382.76

Finding the Fourth Proportional to 839,355.97, 1,158,312.72 and 457,382.76

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Solution

The fourth proportional to 839,355.97, 1,158,312.72 and 457,382.76 is: 631,189.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,355.97 : 1,158,312.72 = 457,382.76 : x
  2. Step 2: Convert to fraction form
    839,355.97/1,158,312.72 = 457,382.76/x
  3. Step 3: Cross multiply
    839,355.97x = 1,158,312.72 × 457,382.76
  4. Step 4: Simplify right side
    839,355.97x = 529,792,268,816.71
  5. Step 5: Solve for x
    x = 529,792,268,816.71/839,355.97
  6. Step 6: Final answer
    x = 631,189.02

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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.