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Finding the Fourth Proportional to 603,223,669.80, 904,835,504.70 and 215,484,316.20

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Solution

The fourth proportional to 603,223,669.80, 904,835,504.70 and 215,484,316.20 is: 323,226,474.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,223,669.80 : 904,835,504.70 = 215,484,316.20 : x
  2. Step 2: Convert to fraction form
    603,223,669.80/904,835,504.70 = 215,484,316.20/x
  3. Step 3: Cross multiply
    603,223,669.80x = 904,835,504.70 × 215,484,316.20
  4. Step 4: Simplify right side
    603,223,669.80x = 194,977,860,003,761,376
  5. Step 5: Solve for x
    x = 194,977,860,003,761,376/603,223,669.80
  6. Step 6: Final answer
    x = 323,226,474.30

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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.