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Finding the Fourth Proportional to 359,327,665.20, 537,983,728.20 and 349,249,969.20

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Solution

The fourth proportional to 359,327,665.20, 537,983,728.20 and 349,249,969.20 is: 522,895,448.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,327,665.20 : 537,983,728.20 = 349,249,969.20 : x
  2. Step 2: Convert to fraction form
    359,327,665.20/537,983,728.20 = 349,249,969.20/x
  3. Step 3: Cross multiply
    359,327,665.20x = 537,983,728.20 × 349,249,969.20
  4. Step 4: Simplify right side
    359,327,665.20x = 187,890,800,503,951,168
  5. Step 5: Solve for x
    x = 187,890,800,503,951,168/359,327,665.20
  6. Step 6: Final answer
    x = 522,895,448.08

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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.