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Finding the Fourth Proportional to 628,056.40, 866,710.56 and 341,570.20

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Solution

The fourth proportional to 628,056.40, 866,710.56 and 341,570.20 is: 471,362.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,056.40 : 866,710.56 = 341,570.20 : x
  2. Step 2: Convert to fraction form
    628,056.40/866,710.56 = 341,570.20/x
  3. Step 3: Cross multiply
    628,056.40x = 866,710.56 × 341,570.20
  4. Step 4: Simplify right side
    628,056.40x = 296,042,499,321.31
  5. Step 5: Solve for x
    x = 296,042,499,321.31/628,056.40
  6. Step 6: Final answer
    x = 471,362.92

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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.