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Finding the Fourth Proportional to 314,501.01, 433,999.93 and 171,257.91

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Solution

The fourth proportional to 314,501.01, 433,999.93 and 171,257.91 is: 236,329.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,501.01 : 433,999.93 = 171,257.91 : x
  2. Step 2: Convert to fraction form
    314,501.01/433,999.93 = 171,257.91/x
  3. Step 3: Cross multiply
    314,501.01x = 433,999.93 × 171,257.91
  4. Step 4: Simplify right side
    314,501.01x = 74,325,920,951.95
  5. Step 5: Solve for x
    x = 74,325,920,951.95/314,501.01
  6. Step 6: Final answer
    x = 236,329.67

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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.