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Finding the Fourth Proportional to 628,039.24, 866,710.50 and 341,576.20

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Solution

The fourth proportional to 628,039.24, 866,710.50 and 341,576.20 is: 471,384.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,039.24 : 866,710.50 = 341,576.20 : x
  2. Step 2: Convert to fraction form
    628,039.24/866,710.50 = 341,576.20/x
  3. Step 3: Cross multiply
    628,039.24x = 866,710.50 × 341,576.20
  4. Step 4: Simplify right side
    628,039.24x = 296,047,679,090.10
  5. Step 5: Solve for x
    x = 296,047,679,090.10/628,039.24
  6. Step 6: Final answer
    x = 471,384.05

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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.