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Finding the Fourth Proportional to 425,421.80, 594,803.20 and 425,421.80

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Solution

The fourth proportional to 425,421.80, 594,803.20 and 425,421.80 is: 594,803.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,421.80 : 594,803.20 = 425,421.80 : x
  2. Step 2: Convert to fraction form
    425,421.80/594,803.20 = 425,421.80/x
  3. Step 3: Cross multiply
    425,421.80x = 594,803.20 × 425,421.80
  4. Step 4: Simplify right side
    425,421.80x = 253,042,247,989.76
  5. Step 5: Solve for x
    x = 253,042,247,989.76/425,421.80
  6. Step 6: Final answer
    x = 594,803.20

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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.