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Finding the Fourth Proportional to 863,248.10, 1,294,872.15 and 483,779.30

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Solution

The fourth proportional to 863,248.10, 1,294,872.15 and 483,779.30 is: 725,668.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,248.10 : 1,294,872.15 = 483,779.30 : x
  2. Step 2: Convert to fraction form
    863,248.10/1,294,872.15 = 483,779.30/x
  3. Step 3: Cross multiply
    863,248.10x = 1,294,872.15 × 483,779.30
  4. Step 4: Simplify right side
    863,248.10x = 626,432,342,316.50
  5. Step 5: Solve for x
    x = 626,432,342,316.50/863,248.10
  6. Step 6: Final answer
    x = 725,668.95

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Half scale
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Double scale
Find fourth proportional to 863,249.10, 1,294,873.65 and 483,780.30
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.