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Finding the Fourth Proportional to 547,353,435, 754,742,460.78 and 348,800,403

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Solution

The fourth proportional to 547,353,435, 754,742,460.78 and 348,800,403 is: 480,958,842.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,353,435 : 754,742,460.78 = 348,800,403 : x
  2. Step 2: Convert to fraction form
    547,353,435/754,742,460.78 = 348,800,403/x
  3. Step 3: Cross multiply
    547,353,435x = 754,742,460.78 × 348,800,403
  4. Step 4: Simplify right side
    547,353,435x = 263,254,474,481,275,680
  5. Step 5: Solve for x
    x = 263,254,474,481,275,680/547,353,435
  6. Step 6: Final answer
    x = 480,958,842.40

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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.