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Finding the Fourth Proportional to 556,795.32, 768,707.55 and 366,137.52

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Solution

The fourth proportional to 556,795.32, 768,707.55 and 366,137.52 is: 505,486.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,795.32 : 768,707.55 = 366,137.52 : x
  2. Step 2: Convert to fraction form
    556,795.32/768,707.55 = 366,137.52/x
  3. Step 3: Cross multiply
    556,795.32x = 768,707.55 × 366,137.52
  4. Step 4: Simplify right side
    556,795.32x = 281,452,675,962.28
  5. Step 5: Solve for x
    x = 281,452,675,962.28/556,795.32
  6. Step 6: Final answer
    x = 505,486.78

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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.