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Finding the Fourth Proportional to 555,098.19, 766,054.07 and 340,196.73

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Solution

The fourth proportional to 555,098.19, 766,054.07 and 340,196.73 is: 469,482.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,098.19 : 766,054.07 = 340,196.73 : x
  2. Step 2: Convert to fraction form
    555,098.19/766,054.07 = 340,196.73/x
  3. Step 3: Cross multiply
    555,098.19x = 766,054.07 × 340,196.73
  4. Step 4: Simplify right side
    555,098.19x = 260,609,089,617.19
  5. Step 5: Solve for x
    x = 260,609,089,617.19/555,098.19
  6. Step 6: Final answer
    x = 469,482.87

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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.