Home / 689,946.72-1,034,764.56-191,349.60

Finding the Fourth Proportional to 689,946.72, 1,034,764.56 and 191,349.60

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Solution

The fourth proportional to 689,946.72, 1,034,764.56 and 191,349.60 is: 286,981.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,946.72 : 1,034,764.56 = 191,349.60 : x
  2. Step 2: Convert to fraction form
    689,946.72/1,034,764.56 = 191,349.60/x
  3. Step 3: Cross multiply
    689,946.72x = 1,034,764.56 × 191,349.60
  4. Step 4: Simplify right side
    689,946.72x = 198,001,784,650.18
  5. Step 5: Solve for x
    x = 198,001,784,650.18/689,946.72
  6. Step 6: Final answer
    x = 286,981.27

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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.