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Finding the Fourth Proportional to 377,615.34, 521,109.32 and 207,848.25

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Solution

The fourth proportional to 377,615.34, 521,109.32 and 207,848.25 is: 286,830.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,615.34 : 521,109.32 = 207,848.25 : x
  2. Step 2: Convert to fraction form
    377,615.34/521,109.32 = 207,848.25/x
  3. Step 3: Cross multiply
    377,615.34x = 521,109.32 × 207,848.25
  4. Step 4: Simplify right side
    377,615.34x = 108,311,659,181.45
  5. Step 5: Solve for x
    x = 108,311,659,181.45/377,615.34
  6. Step 6: Final answer
    x = 286,830.67

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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.