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Finding the Fourth Proportional to 519,885.10, 779,827.65 and 164,926.90

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Solution

The fourth proportional to 519,885.10, 779,827.65 and 164,926.90 is: 247,390.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,885.10 : 779,827.65 = 164,926.90 : x
  2. Step 2: Convert to fraction form
    519,885.10/779,827.65 = 164,926.90/x
  3. Step 3: Cross multiply
    519,885.10x = 779,827.65 × 164,926.90
  4. Step 4: Simplify right side
    519,885.10x = 128,614,556,848.79
  5. Step 5: Solve for x
    x = 128,614,556,848.79/519,885.10
  6. Step 6: Final answer
    x = 247,390.35

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.