Home / 689,784.93-951,896.32-383,856.07

Finding the Fourth Proportional to 689,784.93, 951,896.32 and 383,856.07

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Solution

The fourth proportional to 689,784.93, 951,896.32 and 383,856.07 is: 529,717.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,784.93 : 951,896.32 = 383,856.07 : x
  2. Step 2: Convert to fraction form
    689,784.93/951,896.32 = 383,856.07/x
  3. Step 3: Cross multiply
    689,784.93x = 951,896.32 × 383,856.07
  4. Step 4: Simplify right side
    689,784.93x = 365,391,180,442.66
  5. Step 5: Solve for x
    x = 365,391,180,442.66/689,784.93
  6. Step 6: Final answer
    x = 529,717.55

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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.