Home / 406,871.79-561,453.59-223,080.93

Finding the Fourth Proportional to 406,871.79, 561,453.59 and 223,080.93

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Solution

The fourth proportional to 406,871.79, 561,453.59 and 223,080.93 is: 307,835.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,871.79 : 561,453.59 = 223,080.93 : x
  2. Step 2: Convert to fraction form
    406,871.79/561,453.59 = 223,080.93/x
  3. Step 3: Cross multiply
    406,871.79x = 561,453.59 × 223,080.93
  4. Step 4: Simplify right side
    406,871.79x = 125,249,589,009.04
  5. Step 5: Solve for x
    x = 125,249,589,009.04/406,871.79
  6. Step 6: Final answer
    x = 307,835.52

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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.