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Finding the Fourth Proportional to 675,729.27, 1,012,894.07 and 556,144.11

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Solution

The fourth proportional to 675,729.27, 1,012,894.07 and 556,144.11 is: 833,640.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,729.27 : 1,012,894.07 = 556,144.11 : x
  2. Step 2: Convert to fraction form
    675,729.27/1,012,894.07 = 556,144.11/x
  3. Step 3: Cross multiply
    675,729.27x = 1,012,894.07 × 556,144.11
  4. Step 4: Simplify right side
    675,729.27x = 563,315,068,303.71
  5. Step 5: Solve for x
    x = 563,315,068,303.71/675,729.27
  6. Step 6: Final answer
    x = 833,640.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.