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Finding the Fourth Proportional to 624,193.40, 934,706.10 and 343,393.40

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Solution

The fourth proportional to 624,193.40, 934,706.10 and 343,393.40 is: 514,218.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,193.40 : 934,706.10 = 343,393.40 : x
  2. Step 2: Convert to fraction form
    624,193.40/934,706.10 = 343,393.40/x
  3. Step 3: Cross multiply
    624,193.40x = 934,706.10 × 343,393.40
  4. Step 4: Simplify right side
    624,193.40x = 320,971,905,679.74
  5. Step 5: Solve for x
    x = 320,971,905,679.74/624,193.40
  6. Step 6: Final answer
    x = 514,218.68

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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.