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Finding the Fourth Proportional to 1,267,088.98, 1,748,626.32 and 694,129

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Solution

The fourth proportional to 1,267,088.98, 1,748,626.32 and 694,129 is: 957,921.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,267,088.98 : 1,748,626.32 = 694,129 : x
  2. Step 2: Convert to fraction form
    1,267,088.98/1,748,626.32 = 694,129/x
  3. Step 3: Cross multiply
    1,267,088.98x = 1,748,626.32 × 694,129
  4. Step 4: Simplify right side
    1,267,088.98x = 1,213,772,238,875.28
  5. Step 5: Solve for x
    x = 1,213,772,238,875.28/1,267,088.98
  6. Step 6: Final answer
    x = 957,921.87

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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.