Home / 689,926.68-951,980.34-634,118.34

Finding the Fourth Proportional to 689,926.68, 951,980.34 and 634,118.34

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Solution

The fourth proportional to 689,926.68, 951,980.34 and 634,118.34 is: 874,974.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,926.68 : 951,980.34 = 634,118.34 : x
  2. Step 2: Convert to fraction form
    689,926.68/951,980.34 = 634,118.34/x
  3. Step 3: Cross multiply
    689,926.68x = 951,980.34 × 634,118.34
  4. Step 4: Simplify right side
    689,926.68x = 603,668,192,913.44
  5. Step 5: Solve for x
    x = 603,668,192,913.44/689,926.68
  6. Step 6: Final answer
    x = 874,974.41

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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.