Home / 1,553,176.71-2,143,363.40-855,444.11

Finding the Fourth Proportional to 1,553,176.71, 2,143,363.40 and 855,444.11

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Solution

The fourth proportional to 1,553,176.71, 2,143,363.40 and 855,444.11 is: 1,180,501.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,553,176.71 : 2,143,363.40 = 855,444.11 : x
  2. Step 2: Convert to fraction form
    1,553,176.71/2,143,363.40 = 855,444.11/x
  3. Step 3: Cross multiply
    1,553,176.71x = 2,143,363.40 × 855,444.11
  4. Step 4: Simplify right side
    1,553,176.71x = 1,833,527,596,119.57
  5. Step 5: Solve for x
    x = 1,833,527,596,119.57/1,553,176.71
  6. Step 6: Final answer
    x = 1,180,501.61

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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.