Home / 839,419.53-1,158,395.12-457,446.21

Finding the Fourth Proportional to 839,419.53, 1,158,395.12 and 457,446.21

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Solution

The fourth proportional to 839,419.53, 1,158,395.12 and 457,446.21 is: 631,273.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,419.53 : 1,158,395.12 = 457,446.21 : x
  2. Step 2: Convert to fraction form
    839,419.53/1,158,395.12 = 457,446.21/x
  3. Step 3: Cross multiply
    839,419.53x = 1,158,395.12 × 457,446.21
  4. Step 4: Simplify right side
    839,419.53x = 529,903,457,326.50
  5. Step 5: Solve for x
    x = 529,903,457,326.50/839,419.53
  6. Step 6: Final answer
    x = 631,273.68

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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.