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Finding the Fourth Proportional to 556,635.04, 768,194.96 and 314,918.56

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Solution

The fourth proportional to 556,635.04, 768,194.96 and 314,918.56 is: 434,609.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,635.04 : 768,194.96 = 314,918.56 : x
  2. Step 2: Convert to fraction form
    556,635.04/768,194.96 = 314,918.56/x
  3. Step 3: Cross multiply
    556,635.04x = 768,194.96 × 314,918.56
  4. Step 4: Simplify right side
    556,635.04x = 241,918,850,602.46
  5. Step 5: Solve for x
    x = 241,918,850,602.46/556,635.04
  6. Step 6: Final answer
    x = 434,609.45

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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.