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Finding the Fourth Proportional to 556,770.97, 768,346.04 and 302,122.16

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Solution

The fourth proportional to 556,770.97, 768,346.04 and 302,122.16 is: 416,929.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,770.97 : 768,346.04 = 302,122.16 : x
  2. Step 2: Convert to fraction form
    556,770.97/768,346.04 = 302,122.16/x
  3. Step 3: Cross multiply
    556,770.97x = 768,346.04 × 302,122.16
  4. Step 4: Simplify right side
    556,770.97x = 232,134,362,145.82
  5. Step 5: Solve for x
    x = 232,134,362,145.82/556,770.97
  6. Step 6: Final answer
    x = 416,929.72

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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.