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Finding the Fourth Proportional to 690,632.96, 953,005.20 and 384,698.96

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Solution

The fourth proportional to 690,632.96, 953,005.20 and 384,698.96 is: 530,846.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,632.96 : 953,005.20 = 384,698.96 : x
  2. Step 2: Convert to fraction form
    690,632.96/953,005.20 = 384,698.96/x
  3. Step 3: Cross multiply
    690,632.96x = 953,005.20 × 384,698.96
  4. Step 4: Simplify right side
    690,632.96x = 366,620,109,314.59
  5. Step 5: Solve for x
    x = 366,620,109,314.59/690,632.96
  6. Step 6: Final answer
    x = 530,846.53

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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.