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Finding the Fourth Proportional to 662,603.70, 914,368.16 and 404,911.54

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Solution

The fourth proportional to 662,603.70, 914,368.16 and 404,911.54 is: 558,762.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,603.70 : 914,368.16 = 404,911.54 : x
  2. Step 2: Convert to fraction form
    662,603.70/914,368.16 = 404,911.54/x
  3. Step 3: Cross multiply
    662,603.70x = 914,368.16 × 404,911.54
  4. Step 4: Simplify right side
    662,603.70x = 370,238,219,792.57
  5. Step 5: Solve for x
    x = 370,238,219,792.57/662,603.70
  6. Step 6: Final answer
    x = 558,762.68

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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.