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Finding the Fourth Proportional to 550,421.53, 759,259.12 and 346,148.44

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Solution

The fourth proportional to 550,421.53, 759,259.12 and 346,148.44 is: 477,481.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,421.53 : 759,259.12 = 346,148.44 : x
  2. Step 2: Convert to fraction form
    550,421.53/759,259.12 = 346,148.44/x
  3. Step 3: Cross multiply
    550,421.53x = 759,259.12 × 346,148.44
  4. Step 4: Simplify right side
    550,421.53x = 262,816,354,416.74
  5. Step 5: Solve for x
    x = 262,816,354,416.74/550,421.53
  6. Step 6: Final answer
    x = 477,481.97

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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.