Home / 691,724.21-1,030,709.95-616,264.54

Finding the Fourth Proportional to 691,724.21, 1,030,709.95 and 616,264.54

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Solution

The fourth proportional to 691,724.21, 1,030,709.95 and 616,264.54 is: 918,270.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,724.21 : 1,030,709.95 = 616,264.54 : x
  2. Step 2: Convert to fraction form
    691,724.21/1,030,709.95 = 616,264.54/x
  3. Step 3: Cross multiply
    691,724.21x = 1,030,709.95 × 616,264.54
  4. Step 4: Simplify right side
    691,724.21x = 635,189,989,092.74
  5. Step 5: Solve for x
    x = 635,189,989,092.74/691,724.21
  6. Step 6: Final answer
    x = 918,270.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.