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Finding the Fourth Proportional to 550,338.19, 759,144.98 and 346,065.71

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Solution

The fourth proportional to 550,338.19, 759,144.98 and 346,065.71 is: 477,368.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,338.19 : 759,144.98 = 346,065.71 : x
  2. Step 2: Convert to fraction form
    550,338.19/759,144.98 = 346,065.71/x
  3. Step 3: Cross multiply
    550,338.19x = 759,144.98 × 346,065.71
  4. Step 4: Simplify right side
    550,338.19x = 262,714,046,496.64
  5. Step 5: Solve for x
    x = 262,714,046,496.64/550,338.19
  6. Step 6: Final answer
    x = 477,368.37

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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.