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Finding the Fourth Proportional to 620,283.88, 930,270.30 and 453,765.16

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Solution

The fourth proportional to 620,283.88, 930,270.30 and 453,765.16 is: 680,533.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,283.88 : 930,270.30 = 453,765.16 : x
  2. Step 2: Convert to fraction form
    620,283.88/930,270.30 = 453,765.16/x
  3. Step 3: Cross multiply
    620,283.88x = 930,270.30 × 453,765.16
  4. Step 4: Simplify right side
    620,283.88x = 422,124,251,522.75
  5. Step 5: Solve for x
    x = 422,124,251,522.75/620,283.88
  6. Step 6: Final answer
    x = 680,533.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.