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Finding the Fourth Proportional to 273,031.70, 409,547.55 and 193,315.55

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Solution

The fourth proportional to 273,031.70, 409,547.55 and 193,315.55 is: 289,973.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,031.70 : 409,547.55 = 193,315.55 : x
  2. Step 2: Convert to fraction form
    273,031.70/409,547.55 = 193,315.55/x
  3. Step 3: Cross multiply
    273,031.70x = 409,547.55 × 193,315.55
  4. Step 4: Simplify right side
    273,031.70x = 79,171,909,879.40
  5. Step 5: Solve for x
    x = 79,171,909,879.40/273,031.70
  6. Step 6: Final answer
    x = 289,973.33

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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.