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Finding the Fourth Proportional to 566,785.60, 848,210.10 and 389,638.60

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Solution

The fourth proportional to 566,785.60, 848,210.10 and 389,638.60 is: 583,104.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,785.60 : 848,210.10 = 389,638.60 : x
  2. Step 2: Convert to fraction form
    566,785.60/848,210.10 = 389,638.60/x
  3. Step 3: Cross multiply
    566,785.60x = 848,210.10 × 389,638.60
  4. Step 4: Simplify right side
    566,785.60x = 330,495,395,869.86
  5. Step 5: Solve for x
    x = 330,495,395,869.86/566,785.60
  6. Step 6: Final answer
    x = 583,104.79

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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.