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Finding the Fourth Proportional to 435,205.20, 652,807.80 and 360,409.80

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Solution

The fourth proportional to 435,205.20, 652,807.80 and 360,409.80 is: 540,614.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,205.20 : 652,807.80 = 360,409.80 : x
  2. Step 2: Convert to fraction form
    435,205.20/652,807.80 = 360,409.80/x
  3. Step 3: Cross multiply
    435,205.20x = 652,807.80 × 360,409.80
  4. Step 4: Simplify right side
    435,205.20x = 235,278,328,636.44
  5. Step 5: Solve for x
    x = 235,278,328,636.44/435,205.20
  6. Step 6: Final answer
    x = 540,614.70

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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.