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Finding the Fourth Proportional to 633,891,369.60, 950,837,054.40 and 389,003,356.80

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Solution

The fourth proportional to 633,891,369.60, 950,837,054.40 and 389,003,356.80 is: 583,505,035.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,891,369.60 : 950,837,054.40 = 389,003,356.80 : x
  2. Step 2: Convert to fraction form
    633,891,369.60/950,837,054.40 = 389,003,356.80/x
  3. Step 3: Cross multiply
    633,891,369.60x = 950,837,054.40 × 389,003,356.80
  4. Step 4: Simplify right side
    633,891,369.60x = 369,878,805,931,424,192
  5. Step 5: Solve for x
    x = 369,878,805,931,424,192/633,891,369.60
  6. Step 6: Final answer
    x = 583,505,035.20

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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.