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Finding the Fourth Proportional to 457,687.51, 631,646.04 and 253,802.35

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Solution

The fourth proportional to 457,687.51, 631,646.04 and 253,802.35 is: 350,267.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,687.51 : 631,646.04 = 253,802.35 : x
  2. Step 2: Convert to fraction form
    457,687.51/631,646.04 = 253,802.35/x
  3. Step 3: Cross multiply
    457,687.51x = 631,646.04 × 253,802.35
  4. Step 4: Simplify right side
    457,687.51x = 160,313,249,320.19
  5. Step 5: Solve for x
    x = 160,313,249,320.19/457,687.51
  6. Step 6: Final answer
    x = 350,267.91

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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.