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Finding the Fourth Proportional to 662,033.04, 913,603.08 and 375,608.40

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Solution

The fourth proportional to 662,033.04, 913,603.08 and 375,608.40 is: 518,338.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,033.04 : 913,603.08 = 375,608.40 : x
  2. Step 2: Convert to fraction form
    662,033.04/913,603.08 = 375,608.40/x
  3. Step 3: Cross multiply
    662,033.04x = 913,603.08 × 375,608.40
  4. Step 4: Simplify right side
    662,033.04x = 343,156,991,113.87
  5. Step 5: Solve for x
    x = 343,156,991,113.87/662,033.04
  6. Step 6: Final answer
    x = 518,338.16

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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.