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Finding the Fourth Proportional to 672,772,038.85, 1,009,158,058.28 and 672,772,038.85

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Solution

The fourth proportional to 672,772,038.85, 1,009,158,058.28 and 672,772,038.85 is: 1,009,158,058.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,772,038.85 : 1,009,158,058.28 = 672,772,038.85 : x
  2. Step 2: Convert to fraction form
    672,772,038.85/1,009,158,058.28 = 672,772,038.85/x
  3. Step 3: Cross multiply
    672,772,038.85x = 1,009,158,058.28 × 672,772,038.85
  4. Step 4: Simplify right side
    672,772,038.85x = 678,933,324,390,942,720
  5. Step 5: Solve for x
    x = 678,933,324,390,942,720/672,772,038.85
  6. Step 6: Final answer
    x = 1,009,158,058.28

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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.