Home / 387,016.92-533,828.88-243,656.64

Finding the Fourth Proportional to 387,016.92, 533,828.88 and 243,656.64

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Solution

The fourth proportional to 387,016.92, 533,828.88 and 243,656.64 is: 336,085.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,016.92 : 533,828.88 = 243,656.64 : x
  2. Step 2: Convert to fraction form
    387,016.92/533,828.88 = 243,656.64/x
  3. Step 3: Cross multiply
    387,016.92x = 533,828.88 × 243,656.64
  4. Step 4: Simplify right side
    387,016.92x = 130,070,951,235.76
  5. Step 5: Solve for x
    x = 130,070,951,235.76/387,016.92
  6. Step 6: Final answer
    x = 336,085.96

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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.