Home / 385,230.30-577,845.45-243,512.70

Finding the Fourth Proportional to 385,230.30, 577,845.45 and 243,512.70

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Solution

The fourth proportional to 385,230.30, 577,845.45 and 243,512.70 is: 365,269.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,230.30 : 577,845.45 = 243,512.70 : x
  2. Step 2: Convert to fraction form
    385,230.30/577,845.45 = 243,512.70/x
  3. Step 3: Cross multiply
    385,230.30x = 577,845.45 × 243,512.70
  4. Step 4: Simplify right side
    385,230.30x = 140,712,705,712.22
  5. Step 5: Solve for x
    x = 140,712,705,712.22/385,230.30
  6. Step 6: Final answer
    x = 365,269.05

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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.