Home / 442,946.58-611,053.66-289,917.40

Finding the Fourth Proportional to 442,946.58, 611,053.66 and 289,917.40

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Solution

The fourth proportional to 442,946.58, 611,053.66 and 289,917.40 is: 399,946.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,946.58 : 611,053.66 = 289,917.40 : x
  2. Step 2: Convert to fraction form
    442,946.58/611,053.66 = 289,917.40/x
  3. Step 3: Cross multiply
    442,946.58x = 611,053.66 × 289,917.40
  4. Step 4: Simplify right side
    442,946.58x = 177,155,088,367.68
  5. Step 5: Solve for x
    x = 177,155,088,367.68/442,946.58
  6. Step 6: Final answer
    x = 399,946.85

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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.