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Finding the Fourth Proportional to 620,144.10, 930,216.15 and 541,412.10

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Solution

The fourth proportional to 620,144.10, 930,216.15 and 541,412.10 is: 812,118.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,144.10 : 930,216.15 = 541,412.10 : x
  2. Step 2: Convert to fraction form
    620,144.10/930,216.15 = 541,412.10/x
  3. Step 3: Cross multiply
    620,144.10x = 930,216.15 × 541,412.10
  4. Step 4: Simplify right side
    620,144.10x = 503,630,279,225.42
  5. Step 5: Solve for x
    x = 503,630,279,225.42/620,144.10
  6. Step 6: Final answer
    x = 812,118.15

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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.