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Finding the Fourth Proportional to 346,553, 478,244.58 and 187,577

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Solution

The fourth proportional to 346,553, 478,244.58 and 187,577 is: 258,857.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,553 : 478,244.58 = 187,577 : x
  2. Step 2: Convert to fraction form
    346,553/478,244.58 = 187,577/x
  3. Step 3: Cross multiply
    346,553x = 478,244.58 × 187,577
  4. Step 4: Simplify right side
    346,553x = 89,707,683,582.66
  5. Step 5: Solve for x
    x = 89,707,683,582.66/346,553
  6. Step 6: Final answer
    x = 258,857.04

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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.