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Finding the Fourth Proportional to 601,778.05, 830,538.84 and 372,409.23

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Solution

The fourth proportional to 601,778.05, 830,538.84 and 372,409.23 is: 513,977.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    601,778.05 : 830,538.84 = 372,409.23 : x
  2. Step 2: Convert to fraction form
    601,778.05/830,538.84 = 372,409.23/x
  3. Step 3: Cross multiply
    601,778.05x = 830,538.84 × 372,409.23
  4. Step 4: Simplify right side
    601,778.05x = 309,300,329,889.49
  5. Step 5: Solve for x
    x = 309,300,329,889.49/601,778.05
  6. Step 6: Final answer
    x = 513,977.42

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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.