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Finding the Fourth Proportional to 563,491.20, 777,697.59 and 348,700.47

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Solution

The fourth proportional to 563,491.20, 777,697.59 and 348,700.47 is: 481,255.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,491.20 : 777,697.59 = 348,700.47 : x
  2. Step 2: Convert to fraction form
    563,491.20/777,697.59 = 348,700.47/x
  3. Step 3: Cross multiply
    563,491.20x = 777,697.59 × 348,700.47
  4. Step 4: Simplify right side
    563,491.20x = 271,183,515,150.87
  5. Step 5: Solve for x
    x = 271,183,515,150.87/563,491.20
  6. Step 6: Final answer
    x = 481,255.99

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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.