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Finding the Fourth Proportional to 521,400.36, 719,547.66 and 295,041

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Solution

The fourth proportional to 521,400.36, 719,547.66 and 295,041 is: 407,165.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,400.36 : 719,547.66 = 295,041 : x
  2. Step 2: Convert to fraction form
    521,400.36/719,547.66 = 295,041/x
  3. Step 3: Cross multiply
    521,400.36x = 719,547.66 × 295,041
  4. Step 4: Simplify right side
    521,400.36x = 212,296,061,154.06
  5. Step 5: Solve for x
    x = 212,296,061,154.06/521,400.36
  6. Step 6: Final answer
    x = 407,165.16

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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.