Home / 619,135.02-928,702.71-408,723.75

Finding the Fourth Proportional to 619,135.02, 928,702.71 and 408,723.75

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Solution

The fourth proportional to 619,135.02, 928,702.71 and 408,723.75 is: 613,085.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,135.02 : 928,702.71 = 408,723.75 : x
  2. Step 2: Convert to fraction form
    619,135.02/928,702.71 = 408,723.75/x
  3. Step 3: Cross multiply
    619,135.02x = 928,702.71 × 408,723.75
  4. Step 4: Simplify right side
    619,135.02x = 379,582,854,266.36
  5. Step 5: Solve for x
    x = 379,582,854,266.36/619,135.02
  6. Step 6: Final answer
    x = 613,085.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.