Home / 690,705.14-953,158.73-384,781.10

Finding the Fourth Proportional to 690,705.14, 953,158.73 and 384,781.10

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Solution

The fourth proportional to 690,705.14, 953,158.73 and 384,781.10 is: 530,989.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,705.14 : 953,158.73 = 384,781.10 : x
  2. Step 2: Convert to fraction form
    690,705.14/953,158.73 = 384,781.10/x
  3. Step 3: Cross multiply
    690,705.14x = 953,158.73 × 384,781.10
  4. Step 4: Simplify right side
    690,705.14x = 366,757,457,914.30
  5. Step 5: Solve for x
    x = 366,757,457,914.30/690,705.14
  6. Step 6: Final answer
    x = 530,989.91

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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.