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Finding the Fourth Proportional to 504,795, 696,666.31 and 278,440.50

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Solution

The fourth proportional to 504,795, 696,666.31 and 278,440.50 is: 384,275.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,795 : 696,666.31 = 278,440.50 : x
  2. Step 2: Convert to fraction form
    504,795/696,666.31 = 278,440.50/x
  3. Step 3: Cross multiply
    504,795x = 696,666.31 × 278,440.50
  4. Step 4: Simplify right side
    504,795x = 193,980,114,993.45
  5. Step 5: Solve for x
    x = 193,980,114,993.45/504,795
  6. Step 6: Final answer
    x = 384,275.03

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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.