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Finding the Fourth Proportional to 612,640,674.72, 845,449,526.88 and 334,183,436.64

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Solution

The fourth proportional to 612,640,674.72, 845,449,526.88 and 334,183,436.64 is: 461,176,085.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,640,674.72 : 845,449,526.88 = 334,183,436.64 : x
  2. Step 2: Convert to fraction form
    612,640,674.72/845,449,526.88 = 334,183,436.64/x
  3. Step 3: Cross multiply
    612,640,674.72x = 845,449,526.88 × 334,183,436.64
  4. Step 4: Simplify right side
    612,640,674.72x = 282,535,228,398,420,448
  5. Step 5: Solve for x
    x = 282,535,228,398,420,448/612,640,674.72
  6. Step 6: Final answer
    x = 461,176,085.85

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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.