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Finding the Fourth Proportional to 569,624.19, 786,079.31 and 321,246.42

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Solution

The fourth proportional to 569,624.19, 786,079.31 and 321,246.42 is: 443,318.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,624.19 : 786,079.31 = 321,246.42 : x
  2. Step 2: Convert to fraction form
    569,624.19/786,079.31 = 321,246.42/x
  3. Step 3: Cross multiply
    569,624.19x = 786,079.31 × 321,246.42
  4. Step 4: Simplify right side
    569,624.19x = 252,525,162,567.34
  5. Step 5: Solve for x
    x = 252,525,162,567.34/569,624.19
  6. Step 6: Final answer
    x = 443,318.89

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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.