Home / 354,554.04-489,287.70-193,409.76

Finding the Fourth Proportional to 354,554.04, 489,287.70 and 193,409.76

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Solution

The fourth proportional to 354,554.04, 489,287.70 and 193,409.76 is: 266,907.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,554.04 : 489,287.70 = 193,409.76 : x
  2. Step 2: Convert to fraction form
    354,554.04/489,287.70 = 193,409.76/x
  3. Step 3: Cross multiply
    354,554.04x = 489,287.70 × 193,409.76
  4. Step 4: Simplify right side
    354,554.04x = 94,633,016,627.95
  5. Step 5: Solve for x
    x = 94,633,016,627.95/354,554.04
  6. Step 6: Final answer
    x = 266,907.17

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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.