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Finding the Fourth Proportional to 632,864.49, 873,319.34 and 346,329.21

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Solution

The fourth proportional to 632,864.49, 873,319.34 and 346,329.21 is: 477,915.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,864.49 : 873,319.34 = 346,329.21 : x
  2. Step 2: Convert to fraction form
    632,864.49/873,319.34 = 346,329.21/x
  3. Step 3: Cross multiply
    632,864.49x = 873,319.34 × 346,329.21
  4. Step 4: Simplify right side
    632,864.49x = 302,455,997,099.92
  5. Step 5: Solve for x
    x = 302,455,997,099.92/632,864.49
  6. Step 6: Final answer
    x = 477,915.90

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1.5x scale

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.