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Finding the Fourth Proportional to 556,922.06, 768,531.89 and 302,267.78

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Solution

The fourth proportional to 556,922.06, 768,531.89 and 302,267.78 is: 417,118.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,922.06 : 768,531.89 = 302,267.78 : x
  2. Step 2: Convert to fraction form
    556,922.06/768,531.89 = 302,267.78/x
  3. Step 3: Cross multiply
    556,922.06x = 768,531.89 × 302,267.78
  4. Step 4: Simplify right side
    556,922.06x = 232,302,426,738.17
  5. Step 5: Solve for x
    x = 232,302,426,738.17/556,922.06
  6. Step 6: Final answer
    x = 417,118.38

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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.