Home / 919,676.70-1,269,264.33-557,089.92

Finding the Fourth Proportional to 919,676.70, 1,269,264.33 and 557,089.92

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Solution

The fourth proportional to 919,676.70, 1,269,264.33 and 557,089.92 is: 768,851.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,676.70 : 1,269,264.33 = 557,089.92 : x
  2. Step 2: Convert to fraction form
    919,676.70/1,269,264.33 = 557,089.92/x
  3. Step 3: Cross multiply
    919,676.70x = 1,269,264.33 × 557,089.92
  4. Step 4: Simplify right side
    919,676.70x = 707,094,364,058.55
  5. Step 5: Solve for x
    x = 707,094,364,058.55/919,676.70
  6. Step 6: Final answer
    x = 768,851.01

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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.