Home / 689,927.68-951,981.72-634,119.34

Finding the Fourth Proportional to 689,927.68, 951,981.72 and 634,119.34

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Solution

The fourth proportional to 689,927.68, 951,981.72 and 634,119.34 is: 874,975.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,927.68 : 951,981.72 = 634,119.34 : x
  2. Step 2: Convert to fraction form
    689,927.68/951,981.72 = 634,119.34/x
  3. Step 3: Cross multiply
    689,927.68x = 951,981.72 × 634,119.34
  4. Step 4: Simplify right side
    689,927.68x = 603,670,019,978.47
  5. Step 5: Solve for x
    x = 603,670,019,978.47/689,927.68
  6. Step 6: Final answer
    x = 874,975.79

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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.