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Finding the Fourth Proportional to 572,583.40, 790,200.70 and 317,936.41

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Solution

The fourth proportional to 572,583.40, 790,200.70 and 317,936.41 is: 438,772.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,583.40 : 790,200.70 = 317,936.41 : x
  2. Step 2: Convert to fraction form
    572,583.40/790,200.70 = 317,936.41/x
  3. Step 3: Cross multiply
    572,583.40x = 790,200.70 × 317,936.41
  4. Step 4: Simplify right side
    572,583.40x = 251,233,570,967.14
  5. Step 5: Solve for x
    x = 251,233,570,967.14/572,583.40
  6. Step 6: Final answer
    x = 438,772.01

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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.