Home / 287,579.16-396,746.10-192,148.20

Finding the Fourth Proportional to 287,579.16, 396,746.10 and 192,148.20

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Solution

The fourth proportional to 287,579.16, 396,746.10 and 192,148.20 is: 265,088.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,579.16 : 396,746.10 = 192,148.20 : x
  2. Step 2: Convert to fraction form
    287,579.16/396,746.10 = 192,148.20/x
  3. Step 3: Cross multiply
    287,579.16x = 396,746.10 × 192,148.20
  4. Step 4: Simplify right side
    287,579.16x = 76,234,048,972.02
  5. Step 5: Solve for x
    x = 76,234,048,972.02/287,579.16
  6. Step 6: Final answer
    x = 265,088.92

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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.