Home / 354,518.02-489,241.52-193,378.82

Finding the Fourth Proportional to 354,518.02, 489,241.52 and 193,378.82

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Solution

The fourth proportional to 354,518.02, 489,241.52 and 193,378.82 is: 266,866.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,518.02 : 489,241.52 = 193,378.82 : x
  2. Step 2: Convert to fraction form
    354,518.02/489,241.52 = 193,378.82/x
  3. Step 3: Cross multiply
    354,518.02x = 489,241.52 × 193,378.82
  4. Step 4: Simplify right side
    354,518.02x = 94,608,946,520.67
  5. Step 5: Solve for x
    x = 94,608,946,520.67/354,518.02
  6. Step 6: Final answer
    x = 266,866.40

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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.