Home / 1,139,787.10-1,572,769.20-656,509.42

Finding the Fourth Proportional to 1,139,787.10, 1,572,769.20 and 656,509.42

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Solution

The fourth proportional to 1,139,787.10, 1,572,769.20 and 656,509.42 is: 905,904.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,787.10 : 1,572,769.20 = 656,509.42 : x
  2. Step 2: Convert to fraction form
    1,139,787.10/1,572,769.20 = 656,509.42/x
  3. Step 3: Cross multiply
    1,139,787.10x = 1,572,769.20 × 656,509.42
  4. Step 4: Simplify right side
    1,139,787.10x = 1,032,537,795,285.86
  5. Step 5: Solve for x
    x = 1,032,537,795,285.86/1,139,787.10
  6. Step 6: Final answer
    x = 905,904.09

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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.