Home / 623,543.16-859,313.76-451,169.28

Finding the Fourth Proportional to 623,543.16, 859,313.76 and 451,169.28

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Solution

The fourth proportional to 623,543.16, 859,313.76 and 451,169.28 is: 621,762.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,543.16 : 859,313.76 = 451,169.28 : x
  2. Step 2: Convert to fraction form
    623,543.16/859,313.76 = 451,169.28/x
  3. Step 3: Cross multiply
    623,543.16x = 859,313.76 × 451,169.28
  4. Step 4: Simplify right side
    623,543.16x = 387,695,970,393.29
  5. Step 5: Solve for x
    x = 387,695,970,393.29/623,543.16
  6. Step 6: Final answer
    x = 621,762.85

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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.