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Finding the Fourth Proportional to 692,925,903.79, 956,002,338.52 and 395,354,373.19

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Solution

The fourth proportional to 692,925,903.79, 956,002,338.52 and 395,354,373.19 is: 545,454,720.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,925,903.79 : 956,002,338.52 = 395,354,373.19 : x
  2. Step 2: Convert to fraction form
    692,925,903.79/956,002,338.52 = 395,354,373.19/x
  3. Step 3: Cross multiply
    692,925,903.79x = 956,002,338.52 × 395,354,373.19
  4. Step 4: Simplify right side
    692,925,903.79x = 377,959,705,313,748,800
  5. Step 5: Solve for x
    x = 377,959,705,313,748,800/692,925,903.79
  6. Step 6: Final answer
    x = 545,454,720.69

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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.