Home / 920,986.59-1,271,000.73-513,088.21

Finding the Fourth Proportional to 920,986.59, 1,271,000.73 and 513,088.21

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Solution

The fourth proportional to 920,986.59, 1,271,000.73 and 513,088.21 is: 708,083.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,986.59 : 1,271,000.73 = 513,088.21 : x
  2. Step 2: Convert to fraction form
    920,986.59/1,271,000.73 = 513,088.21/x
  3. Step 3: Cross multiply
    920,986.59x = 1,271,000.73 × 513,088.21
  4. Step 4: Simplify right side
    920,986.59x = 652,135,489,464.39
  5. Step 5: Solve for x
    x = 652,135,489,464.39/920,986.59
  6. Step 6: Final answer
    x = 708,083.59

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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.