Home / 1,653,223.65-2,480,781.56-642,214.59

Finding the Fourth Proportional to 1,653,223.65, 2,480,781.56 and 642,214.59

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Solution

The fourth proportional to 1,653,223.65, 2,480,781.56 and 642,214.59 is: 963,689.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,653,223.65 : 2,480,781.56 = 642,214.59 : x
  2. Step 2: Convert to fraction form
    1,653,223.65/2,480,781.56 = 642,214.59/x
  3. Step 3: Cross multiply
    1,653,223.65x = 2,480,781.56 × 642,214.59
  4. Step 4: Simplify right side
    1,653,223.65x = 1,593,194,109,223.89
  5. Step 5: Solve for x
    x = 1,593,194,109,223.89/1,653,223.65
  6. Step 6: Final answer
    x = 963,689.40

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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.