Home / 921,637.33-1,271,865.50-513,765.07

Finding the Fourth Proportional to 921,637.33, 1,271,865.50 and 513,765.07

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Solution

The fourth proportional to 921,637.33, 1,271,865.50 and 513,765.07 is: 708,999.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,637.33 : 1,271,865.50 = 513,765.07 : x
  2. Step 2: Convert to fraction form
    921,637.33/1,271,865.50 = 513,765.07/x
  3. Step 3: Cross multiply
    921,637.33x = 1,271,865.50 × 513,765.07
  4. Step 4: Simplify right side
    921,637.33x = 653,440,067,638.09
  5. Step 5: Solve for x
    x = 653,440,067,638.09/921,637.33
  6. Step 6: Final answer
    x = 708,999.13

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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.