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Finding the Fourth Proportional to 674,492.85, 930,802.58 and 368,569.25

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Solution

The fourth proportional to 674,492.85, 930,802.58 and 368,569.25 is: 508,626.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,492.85 : 930,802.58 = 368,569.25 : x
  2. Step 2: Convert to fraction form
    674,492.85/930,802.58 = 368,569.25/x
  3. Step 3: Cross multiply
    674,492.85x = 930,802.58 × 368,569.25
  4. Step 4: Simplify right side
    674,492.85x = 343,065,211,135.67
  5. Step 5: Solve for x
    x = 343,065,211,135.67/674,492.85
  6. Step 6: Final answer
    x = 508,626.90

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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.