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Finding the Fourth Proportional to 504,460.63, 696,160.43 and 278,114.23

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Solution

The fourth proportional to 504,460.63, 696,160.43 and 278,114.23 is: 383,800.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,460.63 : 696,160.43 = 278,114.23 : x
  2. Step 2: Convert to fraction form
    504,460.63/696,160.43 = 278,114.23/x
  3. Step 3: Cross multiply
    504,460.63x = 696,160.43 × 278,114.23
  4. Step 4: Simplify right side
    504,460.63x = 193,612,121,945.92
  5. Step 5: Solve for x
    x = 193,612,121,945.92/504,460.63
  6. Step 6: Final answer
    x = 383,800.26

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Double scale
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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.