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Finding the Fourth Proportional to 560,331.02, 773,253.22 and 318,613.66

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Solution

The fourth proportional to 560,331.02, 773,253.22 and 318,613.66 is: 439,684.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,331.02 : 773,253.22 = 318,613.66 : x
  2. Step 2: Convert to fraction form
    560,331.02/773,253.22 = 318,613.66/x
  3. Step 3: Cross multiply
    560,331.02x = 773,253.22 × 318,613.66
  4. Step 4: Simplify right side
    560,331.02x = 246,369,038,530.99
  5. Step 5: Solve for x
    x = 246,369,038,530.99/560,331.02
  6. Step 6: Final answer
    x = 439,684.81

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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.