Home / 521,370.13-719,431.26-291,895.51

Finding the Fourth Proportional to 521,370.13, 719,431.26 and 291,895.51

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Solution

The fourth proportional to 521,370.13, 719,431.26 and 291,895.51 is: 402,782.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,370.13 : 719,431.26 = 291,895.51 : x
  2. Step 2: Convert to fraction form
    521,370.13/719,431.26 = 291,895.51/x
  3. Step 3: Cross multiply
    521,370.13x = 719,431.26 × 291,895.51
  4. Step 4: Simplify right side
    521,370.13x = 209,998,754,547.64
  5. Step 5: Solve for x
    x = 209,998,754,547.64/521,370.13
  6. Step 6: Final answer
    x = 402,782.48

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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.