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Finding the Fourth Proportional to 504,445.01, 696,139.49 and 278,098.61

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Solution

The fourth proportional to 504,445.01, 696,139.49 and 278,098.61 is: 383,779.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,445.01 : 696,139.49 = 278,098.61 : x
  2. Step 2: Convert to fraction form
    504,445.01/696,139.49 = 278,098.61/x
  3. Step 3: Cross multiply
    504,445.01x = 696,139.49 × 278,098.61
  4. Step 4: Simplify right side
    504,445.01x = 193,595,421,749.66
  5. Step 5: Solve for x
    x = 193,595,421,749.66/504,445.01
  6. Step 6: Final answer
    x = 383,779.04

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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.