Home / 779,725.50-1,076,024.46-422,029.50

Finding the Fourth Proportional to 779,725.50, 1,076,024.46 and 422,029.50

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Solution

The fourth proportional to 779,725.50, 1,076,024.46 and 422,029.50 is: 582,402.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,725.50 : 1,076,024.46 = 422,029.50 : x
  2. Step 2: Convert to fraction form
    779,725.50/1,076,024.46 = 422,029.50/x
  3. Step 3: Cross multiply
    779,725.50x = 1,076,024.46 × 422,029.50
  4. Step 4: Simplify right side
    779,725.50x = 454,114,064,841.57
  5. Step 5: Solve for x
    x = 454,114,064,841.57/779,725.50
  6. Step 6: Final answer
    x = 582,402.48

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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.