Home / 354,828.36-489,597.60-201,857.61

Finding the Fourth Proportional to 354,828.36, 489,597.60 and 201,857.61

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Solution

The fourth proportional to 354,828.36, 489,597.60 and 201,857.61 is: 278,526.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,828.36 : 489,597.60 = 201,857.61 : x
  2. Step 2: Convert to fraction form
    354,828.36/489,597.60 = 201,857.61/x
  3. Step 3: Cross multiply
    354,828.36x = 489,597.60 × 201,857.61
  4. Step 4: Simplify right side
    354,828.36x = 98,829,001,397.74
  5. Step 5: Solve for x
    x = 98,829,001,397.74/354,828.36
  6. Step 6: Final answer
    x = 278,526.22

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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.