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Finding the Fourth Proportional to 655,128,532.30, 982,692,798.45 and 605,243,937.10

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Solution

The fourth proportional to 655,128,532.30, 982,692,798.45 and 605,243,937.10 is: 907,865,905.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,128,532.30 : 982,692,798.45 = 605,243,937.10 : x
  2. Step 2: Convert to fraction form
    655,128,532.30/982,692,798.45 = 605,243,937.10/x
  3. Step 3: Cross multiply
    655,128,532.30x = 982,692,798.45 × 605,243,937.10
  4. Step 4: Simplify right side
    655,128,532.30x = 594,768,858,293,694,848
  5. Step 5: Solve for x
    x = 594,768,858,293,694,848/655,128,532.30
  6. Step 6: Final answer
    x = 907,865,905.65

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Double scale
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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.