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Finding the Fourth Proportional to 504,577.38, 696,316.05 and 278,223.42

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Solution

The fourth proportional to 504,577.38, 696,316.05 and 278,223.42 is: 383,947.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,577.38 : 696,316.05 = 278,223.42 : x
  2. Step 2: Convert to fraction form
    504,577.38/696,316.05 = 278,223.42/x
  3. Step 3: Cross multiply
    504,577.38x = 696,316.05 × 278,223.42
  4. Step 4: Simplify right side
    504,577.38x = 193,731,432,831.89
  5. Step 5: Solve for x
    x = 193,731,432,831.89/504,577.38
  6. Step 6: Final answer
    x = 383,947.91

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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.