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Finding the Fourth Proportional to 388,800.30, 583,200.45 and 164,414.10

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Solution

The fourth proportional to 388,800.30, 583,200.45 and 164,414.10 is: 246,621.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,800.30 : 583,200.45 = 164,414.10 : x
  2. Step 2: Convert to fraction form
    388,800.30/583,200.45 = 164,414.10/x
  3. Step 3: Cross multiply
    388,800.30x = 583,200.45 × 164,414.10
  4. Step 4: Simplify right side
    388,800.30x = 95,886,377,106.35
  5. Step 5: Solve for x
    x = 95,886,377,106.35/388,800.30
  6. Step 6: Final answer
    x = 246,621.15

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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.