Home / 883,624.32-1,219,189.86-521,019.72

Finding the Fourth Proportional to 883,624.32, 1,219,189.86 and 521,019.72

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Solution

The fourth proportional to 883,624.32, 1,219,189.86 and 521,019.72 is: 718,882.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    883,624.32 : 1,219,189.86 = 521,019.72 : x
  2. Step 2: Convert to fraction form
    883,624.32/1,219,189.86 = 521,019.72/x
  3. Step 3: Cross multiply
    883,624.32x = 1,219,189.86 × 521,019.72
  4. Step 4: Simplify right side
    883,624.32x = 635,221,959,484.04
  5. Step 5: Solve for x
    x = 635,221,959,484.04/883,624.32
  6. Step 6: Final answer
    x = 718,882.39

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Double scale
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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.