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Finding the Fourth Proportional to 556,805.66, 768,393.96 and 302,156.92

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Solution

The fourth proportional to 556,805.66, 768,393.96 and 302,156.92 is: 416,977.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,805.66 : 768,393.96 = 302,156.92 : x
  2. Step 2: Convert to fraction form
    556,805.66/768,393.96 = 302,156.92/x
  3. Step 3: Cross multiply
    556,805.66x = 768,393.96 × 302,156.92
  4. Step 4: Simplify right side
    556,805.66x = 232,175,552,300.20
  5. Step 5: Solve for x
    x = 232,175,552,300.20/556,805.66
  6. Step 6: Final answer
    x = 416,977.72

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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.