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Finding the Fourth Proportional to 434,533.40, 651,800.10 and 285,234.20

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Solution

The fourth proportional to 434,533.40, 651,800.10 and 285,234.20 is: 427,851.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,533.40 : 651,800.10 = 285,234.20 : x
  2. Step 2: Convert to fraction form
    434,533.40/651,800.10 = 285,234.20/x
  3. Step 3: Cross multiply
    434,533.40x = 651,800.10 × 285,234.20
  4. Step 4: Simplify right side
    434,533.40x = 185,915,680,083.42
  5. Step 5: Solve for x
    x = 185,915,680,083.42/434,533.40
  6. Step 6: Final answer
    x = 427,851.30

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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.