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Finding the Fourth Proportional to 675,492.36, 932,026.95 and 403,507.16

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Solution

The fourth proportional to 675,492.36, 932,026.95 and 403,507.16 is: 556,748.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,492.36 : 932,026.95 = 403,507.16 : x
  2. Step 2: Convert to fraction form
    675,492.36/932,026.95 = 403,507.16/x
  3. Step 3: Cross multiply
    675,492.36x = 932,026.95 × 403,507.16
  4. Step 4: Simplify right side
    675,492.36x = 376,079,542,977.83
  5. Step 5: Solve for x
    x = 376,079,542,977.83/675,492.36
  6. Step 6: Final answer
    x = 556,748.77

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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.