Home / 921,757.90-1,271,901.14-513,840.02

Finding the Fourth Proportional to 921,757.90, 1,271,901.14 and 513,840.02

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Solution

The fourth proportional to 921,757.90, 1,271,901.14 and 513,840.02 is: 709,029.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,757.90 : 1,271,901.14 = 513,840.02 : x
  2. Step 2: Convert to fraction form
    921,757.90/1,271,901.14 = 513,840.02/x
  3. Step 3: Cross multiply
    921,757.90x = 1,271,901.14 × 513,840.02
  4. Step 4: Simplify right side
    921,757.90x = 653,553,707,215.62
  5. Step 5: Solve for x
    x = 653,553,707,215.62/921,757.90
  6. Step 6: Final answer
    x = 709,029.68

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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.