Home / 1,005,931.33-1,391,840.64-877,138.37

Finding the Fourth Proportional to 1,005,931.33, 1,391,840.64 and 877,138.37

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Solution

The fourth proportional to 1,005,931.33, 1,391,840.64 and 877,138.37 is: 1,213,638.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,931.33 : 1,391,840.64 = 877,138.37 : x
  2. Step 2: Convert to fraction form
    1,005,931.33/1,391,840.64 = 877,138.37/x
  3. Step 3: Cross multiply
    1,005,931.33x = 1,391,840.64 × 877,138.37
  4. Step 4: Simplify right side
    1,005,931.33x = 1,220,836,818,924.46
  5. Step 5: Solve for x
    x = 1,220,836,818,924.46/1,005,931.33
  6. Step 6: Final answer
    x = 1,213,638.33

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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.