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Finding the Fourth Proportional to 472,393,040.40, 708,589,560.60 and 437,955,663.60

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Solution

The fourth proportional to 472,393,040.40, 708,589,560.60 and 437,955,663.60 is: 656,933,495.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,393,040.40 : 708,589,560.60 = 437,955,663.60 : x
  2. Step 2: Convert to fraction form
    472,393,040.40/708,589,560.60 = 437,955,663.60/x
  3. Step 3: Cross multiply
    472,393,040.40x = 708,589,560.60 × 437,955,663.60
  4. Step 4: Simplify right side
    472,393,040.40x = 310,330,811,232,605,440
  5. Step 5: Solve for x
    x = 310,330,811,232,605,440/472,393,040.40
  6. Step 6: Final answer
    x = 656,933,495.40

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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.