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Finding the Fourth Proportional to 314,031.88, 433,359.76 and 170,788.84

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Solution

The fourth proportional to 314,031.88, 433,359.76 and 170,788.84 is: 235,686.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,031.88 : 433,359.76 = 170,788.84 : x
  2. Step 2: Convert to fraction form
    314,031.88/433,359.76 = 170,788.84/x
  3. Step 3: Cross multiply
    314,031.88x = 433,359.76 × 170,788.84
  4. Step 4: Simplify right side
    314,031.88x = 74,013,010,713.08
  5. Step 5: Solve for x
    x = 74,013,010,713.08/314,031.88
  6. Step 6: Final answer
    x = 235,686.30

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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.