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Finding the Fourth Proportional to 354,862,344.80, 531,497,254.80 and 291,161,352.80

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Solution

The fourth proportional to 354,862,344.80, 531,497,254.80 and 291,161,352.80 is: 436,088,703.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,862,344.80 : 531,497,254.80 = 291,161,352.80 : x
  2. Step 2: Convert to fraction form
    354,862,344.80/531,497,254.80 = 291,161,352.80/x
  3. Step 3: Cross multiply
    354,862,344.80x = 531,497,254.80 × 291,161,352.80
  4. Step 4: Simplify right side
    354,862,344.80x = 154,751,459,717,054,304
  5. Step 5: Solve for x
    x = 154,751,459,717,054,304/354,862,344.80
  6. Step 6: Final answer
    x = 436,088,703.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.