Home / 1,289,349.39-1,932,821.65-435,827.18

Finding the Fourth Proportional to 1,289,349.39, 1,932,821.65 and 435,827.18

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Solution

The fourth proportional to 1,289,349.39, 1,932,821.65 and 435,827.18 is: 653,334.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,349.39 : 1,932,821.65 = 435,827.18 : x
  2. Step 2: Convert to fraction form
    1,289,349.39/1,932,821.65 = 435,827.18/x
  3. Step 3: Cross multiply
    1,289,349.39x = 1,932,821.65 × 435,827.18
  4. Step 4: Simplify right side
    1,289,349.39x = 842,376,212,087.76
  5. Step 5: Solve for x
    x = 842,376,212,087.76/1,289,349.39
  6. Step 6: Final answer
    x = 653,334.32

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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.