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Finding the Fourth Proportional to 555,098.69, 766,054.76 and 340,197.23

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Solution

The fourth proportional to 555,098.69, 766,054.76 and 340,197.23 is: 469,483.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,098.69 : 766,054.76 = 340,197.23 : x
  2. Step 2: Convert to fraction form
    555,098.69/766,054.76 = 340,197.23/x
  3. Step 3: Cross multiply
    555,098.69x = 766,054.76 × 340,197.23
  4. Step 4: Simplify right side
    555,098.69x = 260,609,701,849.06
  5. Step 5: Solve for x
    x = 260,609,701,849.06/555,098.69
  6. Step 6: Final answer
    x = 469,483.55

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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.