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Finding the Fourth Proportional to 883,567.80, 1,326,042.90 and 410,311.80

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Solution

The fourth proportional to 883,567.80, 1,326,042.90 and 410,311.80 is: 615,788.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    883,567.80 : 1,326,042.90 = 410,311.80 : x
  2. Step 2: Convert to fraction form
    883,567.80/1,326,042.90 = 410,311.80/x
  3. Step 3: Cross multiply
    883,567.80x = 1,326,042.90 × 410,311.80
  4. Step 4: Simplify right side
    883,567.80x = 544,091,049,176.22
  5. Step 5: Solve for x
    x = 544,091,049,176.22/883,567.80
  6. Step 6: Final answer
    x = 615,788.68

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Half scale
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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.