Home / 289,746.30-434,619.45-261,752.70

Finding the Fourth Proportional to 289,746.30, 434,619.45 and 261,752.70

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Solution

The fourth proportional to 289,746.30, 434,619.45 and 261,752.70 is: 392,629.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,746.30 : 434,619.45 = 261,752.70 : x
  2. Step 2: Convert to fraction form
    289,746.30/434,619.45 = 261,752.70/x
  3. Step 3: Cross multiply
    289,746.30x = 434,619.45 × 261,752.70
  4. Step 4: Simplify right side
    289,746.30x = 113,762,814,510.02
  5. Step 5: Solve for x
    x = 113,762,814,510.02/289,746.30
  6. Step 6: Final answer
    x = 392,629.05

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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.