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Finding the Fourth Proportional to 435,739.80, 653,609.70 and 435,739.80

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Solution

The fourth proportional to 435,739.80, 653,609.70 and 435,739.80 is: 653,609.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,739.80 : 653,609.70 = 435,739.80 : x
  2. Step 2: Convert to fraction form
    435,739.80/653,609.70 = 435,739.80/x
  3. Step 3: Cross multiply
    435,739.80x = 653,609.70 × 435,739.80
  4. Step 4: Simplify right side
    435,739.80x = 284,803,759,956.06
  5. Step 5: Solve for x
    x = 284,803,759,956.06/435,739.80
  6. Step 6: Final answer
    x = 653,609.70

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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.