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Finding the Fourth Proportional to 603,655,223.40, 905,482,835.10 and 172,833,719.40

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Solution

The fourth proportional to 603,655,223.40, 905,482,835.10 and 172,833,719.40 is: 259,250,579.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,655,223.40 : 905,482,835.10 = 172,833,719.40 : x
  2. Step 2: Convert to fraction form
    603,655,223.40/905,482,835.10 = 172,833,719.40/x
  3. Step 3: Cross multiply
    603,655,223.40x = 905,482,835.10 × 172,833,719.40
  4. Step 4: Simplify right side
    603,655,223.40x = 156,497,966,243,189,888
  5. Step 5: Solve for x
    x = 156,497,966,243,189,888/603,655,223.40
  6. Step 6: Final answer
    x = 259,250,579.10

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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.