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Finding the Fourth Proportional to 314,265.99, 433,688.40 and 171,025.86

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Solution

The fourth proportional to 314,265.99, 433,688.40 and 171,025.86 is: 236,016.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,265.99 : 433,688.40 = 171,025.86 : x
  2. Step 2: Convert to fraction form
    314,265.99/433,688.40 = 171,025.86/x
  3. Step 3: Cross multiply
    314,265.99x = 433,688.40 × 171,025.86
  4. Step 4: Simplify right side
    314,265.99x = 74,171,931,582.02
  5. Step 5: Solve for x
    x = 74,171,931,582.02/314,265.99
  6. Step 6: Final answer
    x = 236,016.41

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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.