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Finding the Fourth Proportional to 347,763.60, 521,645.40 and 223,347.60

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Solution

The fourth proportional to 347,763.60, 521,645.40 and 223,347.60 is: 335,021.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,763.60 : 521,645.40 = 223,347.60 : x
  2. Step 2: Convert to fraction form
    347,763.60/521,645.40 = 223,347.60/x
  3. Step 3: Cross multiply
    347,763.60x = 521,645.40 × 223,347.60
  4. Step 4: Simplify right side
    347,763.60x = 116,508,248,141.04
  5. Step 5: Solve for x
    x = 116,508,248,141.04/347,763.60
  6. Step 6: Final answer
    x = 335,021.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.