Home / 821,782.61-1,134,038.23-459,209.44

Finding the Fourth Proportional to 821,782.61, 1,134,038.23 and 459,209.44

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Solution

The fourth proportional to 821,782.61, 1,134,038.23 and 459,209.44 is: 633,696.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,782.61 : 1,134,038.23 = 459,209.44 : x
  2. Step 2: Convert to fraction form
    821,782.61/1,134,038.23 = 459,209.44/x
  3. Step 3: Cross multiply
    821,782.61x = 1,134,038.23 × 459,209.44
  4. Step 4: Simplify right side
    821,782.61x = 520,761,060,536.89
  5. Step 5: Solve for x
    x = 520,761,060,536.89/821,782.61
  6. Step 6: Final answer
    x = 633,696.86

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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.