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Finding the Fourth Proportional to 520,701.24, 718,598.70 and 294,367.80

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Solution

The fourth proportional to 520,701.24, 718,598.70 and 294,367.80 is: 406,245.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,701.24 : 718,598.70 = 294,367.80 : x
  2. Step 2: Convert to fraction form
    520,701.24/718,598.70 = 294,367.80/x
  3. Step 3: Cross multiply
    520,701.24x = 718,598.70 × 294,367.80
  4. Step 4: Simplify right side
    520,701.24x = 211,532,318,401.86
  5. Step 5: Solve for x
    x = 211,532,318,401.86/520,701.24
  6. Step 6: Final answer
    x = 406,245.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.