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Finding the Fourth Proportional to 633,208.74, 873,827.55 and 346,734.42

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Solution

The fourth proportional to 633,208.74, 873,827.55 and 346,734.42 is: 478,493.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,208.74 : 873,827.55 = 346,734.42 : x
  2. Step 2: Convert to fraction form
    633,208.74/873,827.55 = 346,734.42/x
  3. Step 3: Cross multiply
    633,208.74x = 873,827.55 × 346,734.42
  4. Step 4: Simplify right side
    633,208.74x = 302,986,088,729.27
  5. Step 5: Solve for x
    x = 302,986,088,729.27/633,208.74
  6. Step 6: Final answer
    x = 478,493.22

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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.