Home / 354,985.02-489,899.25-193,855.05

Finding the Fourth Proportional to 354,985.02, 489,899.25 and 193,855.05

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Solution

The fourth proportional to 354,985.02, 489,899.25 and 193,855.05 is: 267,530.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,985.02 : 489,899.25 = 193,855.05 : x
  2. Step 2: Convert to fraction form
    354,985.02/489,899.25 = 193,855.05/x
  3. Step 3: Cross multiply
    354,985.02x = 489,899.25 × 193,855.05
  4. Step 4: Simplify right side
    354,985.02x = 94,969,443,603.71
  5. Step 5: Solve for x
    x = 94,969,443,603.71/354,985.02
  6. Step 6: Final answer
    x = 267,530.85

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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.