Home / 659,823.84-990,318.96-434,553.12

Finding the Fourth Proportional to 659,823.84, 990,318.96 and 434,553.12

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Solution

The fourth proportional to 659,823.84, 990,318.96 and 434,553.12 is: 652,213.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,823.84 : 990,318.96 = 434,553.12 : x
  2. Step 2: Convert to fraction form
    659,823.84/990,318.96 = 434,553.12/x
  3. Step 3: Cross multiply
    659,823.84x = 990,318.96 × 434,553.12
  4. Step 4: Simplify right side
    659,823.84x = 430,346,193,863.16
  5. Step 5: Solve for x
    x = 430,346,193,863.16/659,823.84
  6. Step 6: Final answer
    x = 652,213.77

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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.