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Finding the Fourth Proportional to 713,829.18, 1,068,640.06 and 625,255.68

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Solution

The fourth proportional to 713,829.18, 1,068,640.06 and 625,255.68 is: 936,040.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,829.18 : 1,068,640.06 = 625,255.68 : x
  2. Step 2: Convert to fraction form
    713,829.18/1,068,640.06 = 625,255.68/x
  3. Step 3: Cross multiply
    713,829.18x = 1,068,640.06 × 625,255.68
  4. Step 4: Simplify right side
    713,829.18x = 668,173,260,484.20
  5. Step 5: Solve for x
    x = 668,173,260,484.20/713,829.18
  6. Step 6: Final answer
    x = 936,040.84

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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.