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Finding the Fourth Proportional to 324,337.40, 486,068.70 and 217,417.40

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Solution

The fourth proportional to 324,337.40, 486,068.70 and 217,417.40 is: 325,832.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,337.40 : 486,068.70 = 217,417.40 : x
  2. Step 2: Convert to fraction form
    324,337.40/486,068.70 = 217,417.40/x
  3. Step 3: Cross multiply
    324,337.40x = 486,068.70 × 217,417.40
  4. Step 4: Simplify right side
    324,337.40x = 105,679,792,975.38
  5. Step 5: Solve for x
    x = 105,679,792,975.38/324,337.40
  6. Step 6: Final answer
    x = 325,832.89

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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.