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Finding the Fourth Proportional to 920,290.64, 1,269,805.86 and 580,562

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Solution

The fourth proportional to 920,290.64, 1,269,805.86 and 580,562 is: 801,052.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,290.64 : 1,269,805.86 = 580,562 : x
  2. Step 2: Convert to fraction form
    920,290.64/1,269,805.86 = 580,562/x
  3. Step 3: Cross multiply
    920,290.64x = 1,269,805.86 × 580,562
  4. Step 4: Simplify right side
    920,290.64x = 737,201,029,693.32
  5. Step 5: Solve for x
    x = 737,201,029,693.32/920,290.64
  6. Step 6: Final answer
    x = 801,052.40

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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.