Home / 839,419.57-1,158,365.25-457,438.15

Finding the Fourth Proportional to 839,419.57, 1,158,365.25 and 457,438.15

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Solution

The fourth proportional to 839,419.57, 1,158,365.25 and 457,438.15 is: 631,246.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,419.57 : 1,158,365.25 = 457,438.15 : x
  2. Step 2: Convert to fraction form
    839,419.57/1,158,365.25 = 457,438.15/x
  3. Step 3: Cross multiply
    839,419.57x = 1,158,365.25 × 457,438.15
  4. Step 4: Simplify right side
    839,419.57x = 529,880,456,984.29
  5. Step 5: Solve for x
    x = 529,880,456,984.29/839,419.57
  6. Step 6: Final answer
    x = 631,246.25

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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.