Home / 658,715.39-908,923.91-383,134.22

Finding the Fourth Proportional to 658,715.39, 908,923.91 and 383,134.22

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Solution

The fourth proportional to 658,715.39, 908,923.91 and 383,134.22 is: 528,665.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,715.39 : 908,923.91 = 383,134.22 : x
  2. Step 2: Convert to fraction form
    658,715.39/908,923.91 = 383,134.22/x
  3. Step 3: Cross multiply
    658,715.39x = 908,923.91 × 383,134.22
  4. Step 4: Simplify right side
    658,715.39x = 348,239,846,836.91
  5. Step 5: Solve for x
    x = 348,239,846,836.91/658,715.39
  6. Step 6: Final answer
    x = 528,665.12

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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.