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Finding the Fourth Proportional to 632,698.30, 873,123.62 and 346,218.42

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Solution

The fourth proportional to 632,698.30, 873,123.62 and 346,218.42 is: 477,781.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,698.30 : 873,123.62 = 346,218.42 : x
  2. Step 2: Convert to fraction form
    632,698.30/873,123.62 = 346,218.42/x
  3. Step 3: Cross multiply
    632,698.30x = 873,123.62 × 346,218.42
  4. Step 4: Simplify right side
    632,698.30x = 302,291,480,181.08
  5. Step 5: Solve for x
    x = 302,291,480,181.08/632,698.30
  6. Step 6: Final answer
    x = 477,781.40

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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.