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Finding the Fourth Proportional to 654,764.01, 903,583.67 and 386,492.01

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Solution

The fourth proportional to 654,764.01, 903,583.67 and 386,492.01 is: 533,364.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,764.01 : 903,583.67 = 386,492.01 : x
  2. Step 2: Convert to fraction form
    654,764.01/903,583.67 = 386,492.01/x
  3. Step 3: Cross multiply
    654,764.01x = 903,583.67 × 386,492.01
  4. Step 4: Simplify right side
    654,764.01x = 349,227,868,821.48
  5. Step 5: Solve for x
    x = 349,227,868,821.48/654,764.01
  6. Step 6: Final answer
    x = 533,364.48

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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.