Home / 839,643.70-1,259,465.55-341,365.30

Finding the Fourth Proportional to 839,643.70, 1,259,465.55 and 341,365.30

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Solution

The fourth proportional to 839,643.70, 1,259,465.55 and 341,365.30 is: 512,047.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,643.70 : 1,259,465.55 = 341,365.30 : x
  2. Step 2: Convert to fraction form
    839,643.70/1,259,465.55 = 341,365.30/x
  3. Step 3: Cross multiply
    839,643.70x = 1,259,465.55 × 341,365.30
  4. Step 4: Simplify right side
    839,643.70x = 429,937,835,315.42
  5. Step 5: Solve for x
    x = 429,937,835,315.42/839,643.70
  6. Step 6: Final answer
    x = 512,047.95

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.