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Finding the Fourth Proportional to 432,008.20, 603,411.80 and 432,008.20

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Solution

The fourth proportional to 432,008.20, 603,411.80 and 432,008.20 is: 603,411.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,008.20 : 603,411.80 = 432,008.20 : x
  2. Step 2: Convert to fraction form
    432,008.20/603,411.80 = 432,008.20/x
  3. Step 3: Cross multiply
    432,008.20x = 603,411.80 × 432,008.20
  4. Step 4: Simplify right side
    432,008.20x = 260,678,845,576.76
  5. Step 5: Solve for x
    x = 260,678,845,576.76/432,008.20
  6. Step 6: Final answer
    x = 603,411.80

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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.