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Finding the Fourth Proportional to 560,466.54, 773,420.40 and 318,715.56

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Solution

The fourth proportional to 560,466.54, 773,420.40 and 318,715.56 is: 439,814.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,466.54 : 773,420.40 = 318,715.56 : x
  2. Step 2: Convert to fraction form
    560,466.54/773,420.40 = 318,715.56/x
  3. Step 3: Cross multiply
    560,466.54x = 773,420.40 × 318,715.56
  4. Step 4: Simplify right side
    560,466.54x = 246,501,115,901.42
  5. Step 5: Solve for x
    x = 246,501,115,901.42/560,466.54
  6. Step 6: Final answer
    x = 439,814.15

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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.