Home / 289,111.76-398,968.01-160,042.77

Finding the Fourth Proportional to 289,111.76, 398,968.01 and 160,042.77

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Solution

The fourth proportional to 289,111.76, 398,968.01 and 160,042.77 is: 220,855.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,111.76 : 398,968.01 = 160,042.77 : x
  2. Step 2: Convert to fraction form
    289,111.76/398,968.01 = 160,042.77/x
  3. Step 3: Cross multiply
    289,111.76x = 398,968.01 × 160,042.77
  4. Step 4: Simplify right side
    289,111.76x = 63,851,945,461.79
  5. Step 5: Solve for x
    x = 63,851,945,461.79/289,111.76
  6. Step 6: Final answer
    x = 220,855.58

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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.