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Finding the Fourth Proportional to 556,774.17, 768,350.40 and 302,125.38

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Solution

The fourth proportional to 556,774.17, 768,350.40 and 302,125.38 is: 416,934.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,774.17 : 768,350.40 = 302,125.38 : x
  2. Step 2: Convert to fraction form
    556,774.17/768,350.40 = 302,125.38/x
  3. Step 3: Cross multiply
    556,774.17x = 768,350.40 × 302,125.38
  4. Step 4: Simplify right side
    556,774.17x = 232,138,156,573.15
  5. Step 5: Solve for x
    x = 232,138,156,573.15/556,774.17
  6. Step 6: Final answer
    x = 416,934.13

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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.