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Finding the Fourth Proportional to 624,186.90, 934,696.35 and 343,386.90

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Solution

The fourth proportional to 624,186.90, 934,696.35 and 343,386.90 is: 514,208.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,186.90 : 934,696.35 = 343,386.90 : x
  2. Step 2: Convert to fraction form
    624,186.90/934,696.35 = 343,386.90/x
  3. Step 3: Cross multiply
    624,186.90x = 934,696.35 × 343,386.90
  4. Step 4: Simplify right side
    624,186.90x = 320,962,482,067.82
  5. Step 5: Solve for x
    x = 320,962,482,067.82/624,186.90
  6. Step 6: Final answer
    x = 514,208.94

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1.5x scale

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.