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Finding the Fourth Proportional to 1,168,330, 1,612,295.48 and 631,786

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Solution

The fourth proportional to 1,168,330, 1,612,295.48 and 631,786 is: 871,864.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,168,330 : 1,612,295.48 = 631,786 : x
  2. Step 2: Convert to fraction form
    1,168,330/1,612,295.48 = 631,786/x
  3. Step 3: Cross multiply
    1,168,330x = 1,612,295.48 × 631,786
  4. Step 4: Simplify right side
    1,168,330x = 1,018,625,712,127.28
  5. Step 5: Solve for x
    x = 1,018,625,712,127.28/1,168,330
  6. Step 6: Final answer
    x = 871,864.72

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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.