Home / 690,711.14-953,167.01-384,787.10

Finding the Fourth Proportional to 690,711.14, 953,167.01 and 384,787.10

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Solution

The fourth proportional to 690,711.14, 953,167.01 and 384,787.10 is: 530,998.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,711.14 : 953,167.01 = 384,787.10 : x
  2. Step 2: Convert to fraction form
    690,711.14/953,167.01 = 384,787.10/x
  3. Step 3: Cross multiply
    690,711.14x = 953,167.01 × 384,787.10
  4. Step 4: Simplify right side
    690,711.14x = 366,766,362,903.80
  5. Step 5: Solve for x
    x = 366,766,362,903.80/690,711.14
  6. Step 6: Final answer
    x = 530,998.19

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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.