Home / 658,890.01-908,917.12-400,845.61

Finding the Fourth Proportional to 658,890.01, 908,917.12 and 400,845.61

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Solution

The fourth proportional to 658,890.01, 908,917.12 and 400,845.61 is: 552,953.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,890.01 : 908,917.12 = 400,845.61 : x
  2. Step 2: Convert to fraction form
    658,890.01/908,917.12 = 400,845.61/x
  3. Step 3: Cross multiply
    658,890.01x = 908,917.12 × 400,845.61
  4. Step 4: Simplify right side
    658,890.01x = 364,335,437,405.84
  5. Step 5: Solve for x
    x = 364,335,437,405.84/658,890.01
  6. Step 6: Final answer
    x = 552,953.35

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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.