Home / 1,291,535.10-1,937,302.92-392,896.80

Finding the Fourth Proportional to 1,291,535.10, 1,937,302.92 and 392,896.80

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Solution

The fourth proportional to 1,291,535.10, 1,937,302.92 and 392,896.80 is: 589,345.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,535.10 : 1,937,302.92 = 392,896.80 : x
  2. Step 2: Convert to fraction form
    1,291,535.10/1,937,302.92 = 392,896.80/x
  3. Step 3: Cross multiply
    1,291,535.10x = 1,937,302.92 × 392,896.80
  4. Step 4: Simplify right side
    1,291,535.10x = 761,160,117,898.66
  5. Step 5: Solve for x
    x = 761,160,117,898.66/1,291,535.10
  6. Step 6: Final answer
    x = 589,345.28

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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.