Home / 828,726.79-1,142,664.72-567,208.21

Finding the Fourth Proportional to 828,726.79, 1,142,664.72 and 567,208.21

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Solution

The fourth proportional to 828,726.79, 1,142,664.72 and 567,208.21 is: 782,077.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,726.79 : 1,142,664.72 = 567,208.21 : x
  2. Step 2: Convert to fraction form
    828,726.79/1,142,664.72 = 567,208.21/x
  3. Step 3: Cross multiply
    828,726.79x = 1,142,664.72 × 567,208.21
  4. Step 4: Simplify right side
    828,726.79x = 648,128,810,461.35
  5. Step 5: Solve for x
    x = 648,128,810,461.35/828,726.79
  6. Step 6: Final answer
    x = 782,077.78

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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.