Home / 839,966.70-1,259,950.05-460,740.90

Finding the Fourth Proportional to 839,966.70, 1,259,950.05 and 460,740.90

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Solution

The fourth proportional to 839,966.70, 1,259,950.05 and 460,740.90 is: 691,111.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,966.70 : 1,259,950.05 = 460,740.90 : x
  2. Step 2: Convert to fraction form
    839,966.70/1,259,950.05 = 460,740.90/x
  3. Step 3: Cross multiply
    839,966.70x = 1,259,950.05 × 460,740.90
  4. Step 4: Simplify right side
    839,966.70x = 580,510,519,992.05
  5. Step 5: Solve for x
    x = 580,510,519,992.05/839,966.70
  6. Step 6: Final answer
    x = 691,111.35

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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.