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Finding the Fourth Proportional to 550,326.76, 759,129.15 and 346,054.30

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Solution

The fourth proportional to 550,326.76, 759,129.15 and 346,054.30 is: 477,352.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,326.76 : 759,129.15 = 346,054.30 : x
  2. Step 2: Convert to fraction form
    550,326.76/759,129.15 = 346,054.30/x
  3. Step 3: Cross multiply
    550,326.76x = 759,129.15 × 346,054.30
  4. Step 4: Simplify right side
    550,326.76x = 262,699,906,612.85
  5. Step 5: Solve for x
    x = 262,699,906,612.85/550,326.76
  6. Step 6: Final answer
    x = 477,352.59

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Double scale
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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.