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Finding the Fourth Proportional to 540,970,367.40, 811,455,551.10 and 368,783,483.40

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Solution

The fourth proportional to 540,970,367.40, 811,455,551.10 and 368,783,483.40 is: 553,175,225.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,970,367.40 : 811,455,551.10 = 368,783,483.40 : x
  2. Step 2: Convert to fraction form
    540,970,367.40/811,455,551.10 = 368,783,483.40/x
  3. Step 3: Cross multiply
    540,970,367.40x = 811,455,551.10 × 368,783,483.40
  4. Step 4: Simplify right side
    540,970,367.40x = 299,251,404,758,924,672
  5. Step 5: Solve for x
    x = 299,251,404,758,924,672/540,970,367.40
  6. Step 6: Final answer
    x = 553,175,225.10

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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.