Home / 1,288,889.56-1,778,666.88-715,983.04

Finding the Fourth Proportional to 1,288,889.56, 1,778,666.88 and 715,983.04

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Solution

The fourth proportional to 1,288,889.56, 1,778,666.88 and 715,983.04 is: 988,056.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,889.56 : 1,778,666.88 = 715,983.04 : x
  2. Step 2: Convert to fraction form
    1,288,889.56/1,778,666.88 = 715,983.04/x
  3. Step 3: Cross multiply
    1,288,889.56x = 1,778,666.88 × 715,983.04
  4. Step 4: Simplify right side
    1,288,889.56x = 1,273,495,319,889.72
  5. Step 5: Solve for x
    x = 1,273,495,319,889.72/1,288,889.56
  6. Step 6: Final answer
    x = 988,056.20

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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.