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Finding the Fourth Proportional to 671,953,363.20, 927,295,430.40 and 362,904,019.20

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Solution

The fourth proportional to 671,953,363.20, 927,295,430.40 and 362,904,019.20 is: 500,807,432.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,953,363.20 : 927,295,430.40 = 362,904,019.20 : x
  2. Step 2: Convert to fraction form
    671,953,363.20/927,295,430.40 = 362,904,019.20/x
  3. Step 3: Cross multiply
    671,953,363.20x = 927,295,430.40 × 362,904,019.20
  4. Step 4: Simplify right side
    671,953,363.20x = 336,519,238,677,953,856
  5. Step 5: Solve for x
    x = 336,519,238,677,953,856/671,953,363.20
  6. Step 6: Final answer
    x = 500,807,432.64

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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.