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Finding the Fourth Proportional to 587,780.40, 824,758.80 and 587,780.40

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Solution

The fourth proportional to 587,780.40, 824,758.80 and 587,780.40 is: 824,758.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,780.40 : 824,758.80 = 587,780.40 : x
  2. Step 2: Convert to fraction form
    587,780.40/824,758.80 = 587,780.40/x
  3. Step 3: Cross multiply
    587,780.40x = 824,758.80 × 587,780.40
  4. Step 4: Simplify right side
    587,780.40x = 484,777,057,367.52
  5. Step 5: Solve for x
    x = 484,777,057,367.52/587,780.40
  6. Step 6: Final answer
    x = 824,758.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.