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Finding the Fourth Proportional to 530,661.34, 732,306.27 and 288,943.84

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Solution

The fourth proportional to 530,661.34, 732,306.27 and 288,943.84 is: 398,739.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,661.34 : 732,306.27 = 288,943.84 : x
  2. Step 2: Convert to fraction form
    530,661.34/732,306.27 = 288,943.84/x
  3. Step 3: Cross multiply
    530,661.34x = 732,306.27 × 288,943.84
  4. Step 4: Simplify right side
    530,661.34x = 211,595,385,709.88
  5. Step 5: Solve for x
    x = 211,595,385,709.88/530,661.34
  6. Step 6: Final answer
    x = 398,739.03

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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.