Home / 689,628.53-951,603.80-383,632.61

Finding the Fourth Proportional to 689,628.53, 951,603.80 and 383,632.61

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Solution

The fourth proportional to 689,628.53, 951,603.80 and 383,632.61 is: 529,366.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,628.53 : 951,603.80 = 383,632.61 : x
  2. Step 2: Convert to fraction form
    689,628.53/951,603.80 = 383,632.61/x
  3. Step 3: Cross multiply
    689,628.53x = 951,603.80 × 383,632.61
  4. Step 4: Simplify right side
    689,628.53x = 365,066,242,803.74
  5. Step 5: Solve for x
    x = 365,066,242,803.74/689,628.53
  6. Step 6: Final answer
    x = 529,366.50

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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.