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Finding the Fourth Proportional to 316,599.14, 436,907.51 and 171,406.45

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Solution

The fourth proportional to 316,599.14, 436,907.51 and 171,406.45 is: 236,541.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,599.14 : 436,907.51 = 171,406.45 : x
  2. Step 2: Convert to fraction form
    316,599.14/436,907.51 = 171,406.45/x
  3. Step 3: Cross multiply
    316,599.14x = 436,907.51 × 171,406.45
  4. Step 4: Simplify right side
    316,599.14x = 74,888,764,603.69
  5. Step 5: Solve for x
    x = 74,888,764,603.69/316,599.14
  6. Step 6: Final answer
    x = 236,541.27

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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.