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Finding the Fourth Proportional to 310,612.54, 427,587.48 and 229,887.94

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Solution

The fourth proportional to 310,612.54, 427,587.48 and 229,887.94 is: 316,462.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,612.54 : 427,587.48 = 229,887.94 : x
  2. Step 2: Convert to fraction form
    310,612.54/427,587.48 = 229,887.94/x
  3. Step 3: Cross multiply
    310,612.54x = 427,587.48 × 229,887.94
  4. Step 4: Simplify right side
    310,612.54x = 98,297,204,946.99
  5. Step 5: Solve for x
    x = 98,297,204,946.99/310,612.54
  6. Step 6: Final answer
    x = 316,462.45

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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.