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Finding the Fourth Proportional to 426,124.80, 580,003.20 and 426,124.80

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Solution

The fourth proportional to 426,124.80, 580,003.20 and 426,124.80 is: 580,003.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,124.80 : 580,003.20 = 426,124.80 : x
  2. Step 2: Convert to fraction form
    426,124.80/580,003.20 = 426,124.80/x
  3. Step 3: Cross multiply
    426,124.80x = 580,003.20 × 426,124.80
  4. Step 4: Simplify right side
    426,124.80x = 247,153,747,599.36
  5. Step 5: Solve for x
    x = 247,153,747,599.36/426,124.80
  6. Step 6: Final answer
    x = 580,003.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.