Home / 385,079.20-577,618.80-291,767.20

Finding the Fourth Proportional to 385,079.20, 577,618.80 and 291,767.20

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Solution

The fourth proportional to 385,079.20, 577,618.80 and 291,767.20 is: 437,650.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,079.20 : 577,618.80 = 291,767.20 : x
  2. Step 2: Convert to fraction form
    385,079.20/577,618.80 = 291,767.20/x
  3. Step 3: Cross multiply
    385,079.20x = 577,618.80 × 291,767.20
  4. Step 4: Simplify right side
    385,079.20x = 168,530,219,943.36
  5. Step 5: Solve for x
    x = 168,530,219,943.36/385,079.20
  6. Step 6: Final answer
    x = 437,650.80

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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.