Home / 1,326,197.76-1,990,068.56-557,639.87

Finding the Fourth Proportional to 1,326,197.76, 1,990,068.56 and 557,639.87

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Solution

The fourth proportional to 1,326,197.76, 1,990,068.56 and 557,639.87 is: 836,784.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,197.76 : 1,990,068.56 = 557,639.87 : x
  2. Step 2: Convert to fraction form
    1,326,197.76/1,990,068.56 = 557,639.87/x
  3. Step 3: Cross multiply
    1,326,197.76x = 1,990,068.56 × 557,639.87
  4. Step 4: Simplify right side
    1,326,197.76x = 1,109,741,573,089.49
  5. Step 5: Solve for x
    x = 1,109,741,573,089.49/1,326,197.76
  6. Step 6: Final answer
    x = 836,784.38

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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.