Home / 919,702.60-1,269,231.06-517,294.60

Finding the Fourth Proportional to 919,702.60, 1,269,231.06 and 517,294.60

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Solution

The fourth proportional to 919,702.60, 1,269,231.06 and 517,294.60 is: 713,889.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,702.60 : 1,269,231.06 = 517,294.60 : x
  2. Step 2: Convert to fraction form
    919,702.60/1,269,231.06 = 517,294.60/x
  3. Step 3: Cross multiply
    919,702.60x = 1,269,231.06 × 517,294.60
  4. Step 4: Simplify right side
    919,702.60x = 656,566,373,490.28
  5. Step 5: Solve for x
    x = 656,566,373,490.28/919,702.60
  6. Step 6: Final answer
    x = 713,889.87

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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.