Home / 1,071,353.28-1,478,236.58-618,381.84

Finding the Fourth Proportional to 1,071,353.28, 1,478,236.58 and 618,381.84

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Solution

The fourth proportional to 1,071,353.28, 1,478,236.58 and 618,381.84 is: 853,233.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,071,353.28 : 1,478,236.58 = 618,381.84 : x
  2. Step 2: Convert to fraction form
    1,071,353.28/1,478,236.58 = 618,381.84/x
  3. Step 3: Cross multiply
    1,071,353.28x = 1,478,236.58 × 618,381.84
  4. Step 4: Simplify right side
    1,071,353.28x = 914,114,664,544.52
  5. Step 5: Solve for x
    x = 914,114,664,544.52/1,071,353.28
  6. Step 6: Final answer
    x = 853,233.64

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Double scale
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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.