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Finding the Fourth Proportional to 1,168,507, 1,612,539.66 and 631,963

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Solution

The fourth proportional to 1,168,507, 1,612,539.66 and 631,963 is: 872,108.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,168,507 : 1,612,539.66 = 631,963 : x
  2. Step 2: Convert to fraction form
    1,168,507/1,612,539.66 = 631,963/x
  3. Step 3: Cross multiply
    1,168,507x = 1,612,539.66 × 631,963
  4. Step 4: Simplify right side
    1,168,507x = 1,019,065,401,152.58
  5. Step 5: Solve for x
    x = 1,019,065,401,152.58/1,168,507
  6. Step 6: Final answer
    x = 872,108.94

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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.