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Finding the Fourth Proportional to 284,278.01, 392,301.02 and 156,954.51

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Solution

The fourth proportional to 284,278.01, 392,301.02 and 156,954.51 is: 216,595.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,278.01 : 392,301.02 = 156,954.51 : x
  2. Step 2: Convert to fraction form
    284,278.01/392,301.02 = 156,954.51/x
  3. Step 3: Cross multiply
    284,278.01x = 392,301.02 × 156,954.51
  4. Step 4: Simplify right side
    284,278.01x = 61,573,414,758.99
  5. Step 5: Solve for x
    x = 61,573,414,758.99/284,278.01
  6. Step 6: Final answer
    x = 216,595.77

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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.