Home / 921,512.64-1,271,533.26-513,525.06

Finding the Fourth Proportional to 921,512.64, 1,271,533.26 and 513,525.06

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Solution

The fourth proportional to 921,512.64, 1,271,533.26 and 513,525.06 is: 708,578.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,512.64 : 1,271,533.26 = 513,525.06 : x
  2. Step 2: Convert to fraction form
    921,512.64/1,271,533.26 = 513,525.06/x
  3. Step 3: Cross multiply
    921,512.64x = 1,271,533.26 × 513,525.06
  4. Step 4: Simplify right side
    921,512.64x = 652,964,193,633.50
  5. Step 5: Solve for x
    x = 652,964,193,633.50/921,512.64
  6. Step 6: Final answer
    x = 708,578.66

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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.