Home / 779,725.05-1,076,083.07-619,899.09

Finding the Fourth Proportional to 779,725.05, 1,076,083.07 and 619,899.09

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Solution

The fourth proportional to 779,725.05, 1,076,083.07 and 619,899.09 is: 855,510.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,725.05 : 1,076,083.07 = 619,899.09 : x
  2. Step 2: Convert to fraction form
    779,725.05/1,076,083.07 = 619,899.09/x
  3. Step 3: Cross multiply
    779,725.05x = 1,076,083.07 × 619,899.09
  4. Step 4: Simplify right side
    779,725.05x = 667,062,912,026.74
  5. Step 5: Solve for x
    x = 667,062,912,026.74/779,725.05
  6. Step 6: Final answer
    x = 855,510.43

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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.