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Finding the Fourth Proportional to 553,592,446.80, 829,821,799.80 and 323,443,064.40

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Solution

The fourth proportional to 553,592,446.80, 829,821,799.80 and 323,443,064.40 is: 484,833,395.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,592,446.80 : 829,821,799.80 = 323,443,064.40 : x
  2. Step 2: Convert to fraction form
    553,592,446.80/829,821,799.80 = 323,443,064.40/x
  3. Step 3: Cross multiply
    553,592,446.80x = 829,821,799.80 × 323,443,064.40
  4. Step 4: Simplify right side
    553,592,446.80x = 268,400,105,833,235,264
  5. Step 5: Solve for x
    x = 268,400,105,833,235,264/553,592,446.80
  6. Step 6: Final answer
    x = 484,833,395.73

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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.