Home / 644,565.12-965,020.59-535,619.67

Finding the Fourth Proportional to 644,565.12, 965,020.59 and 535,619.67

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Solution

The fourth proportional to 644,565.12, 965,020.59 and 535,619.67 is: 801,911.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,565.12 : 965,020.59 = 535,619.67 : x
  2. Step 2: Convert to fraction form
    644,565.12/965,020.59 = 535,619.67/x
  3. Step 3: Cross multiply
    644,565.12x = 965,020.59 × 535,619.67
  4. Step 4: Simplify right side
    644,565.12x = 516,884,009,959.01
  5. Step 5: Solve for x
    x = 516,884,009,959.01/644,565.12
  6. Step 6: Final answer
    x = 801,911.23

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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.