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Finding the Fourth Proportional to 594,138.60, 891,207.90 and 528,820.20

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Solution

The fourth proportional to 594,138.60, 891,207.90 and 528,820.20 is: 793,230.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    594,138.60 : 891,207.90 = 528,820.20 : x
  2. Step 2: Convert to fraction form
    594,138.60/891,207.90 = 528,820.20/x
  3. Step 3: Cross multiply
    594,138.60x = 891,207.90 × 528,820.20
  4. Step 4: Simplify right side
    594,138.60x = 471,288,739,919.58
  5. Step 5: Solve for x
    x = 471,288,739,919.58/594,138.60
  6. Step 6: Final answer
    x = 793,230.30

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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.