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Finding the Fourth Proportional to 520,671.60, 781,124.61 and 183,736.32

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Solution

The fourth proportional to 520,671.60, 781,124.61 and 183,736.32 is: 275,645.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,671.60 : 781,124.61 = 183,736.32 : x
  2. Step 2: Convert to fraction form
    520,671.60/781,124.61 = 183,736.32/x
  3. Step 3: Cross multiply
    520,671.60x = 781,124.61 × 183,736.32
  4. Step 4: Simplify right side
    520,671.60x = 143,520,961,302.84
  5. Step 5: Solve for x
    x = 143,520,961,302.84/520,671.60
  6. Step 6: Final answer
    x = 275,645.84

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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.