Home / 689,292.74-951,151.40-383,319.60

Finding the Fourth Proportional to 689,292.74, 951,151.40 and 383,319.60

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Solution

The fourth proportional to 689,292.74, 951,151.40 and 383,319.60 is: 528,940.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,292.74 : 951,151.40 = 383,319.60 : x
  2. Step 2: Convert to fraction form
    689,292.74/951,151.40 = 383,319.60/x
  3. Step 3: Cross multiply
    689,292.74x = 951,151.40 × 383,319.60
  4. Step 4: Simplify right side
    689,292.74x = 364,594,974,187.44
  5. Step 5: Solve for x
    x = 364,594,974,187.44/689,292.74
  6. Step 6: Final answer
    x = 528,940.69

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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.