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Finding the Fourth Proportional to 827,772.70, 1,241,659.05 and 575,830.30

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Solution

The fourth proportional to 827,772.70, 1,241,659.05 and 575,830.30 is: 863,745.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,772.70 : 1,241,659.05 = 575,830.30 : x
  2. Step 2: Convert to fraction form
    827,772.70/1,241,659.05 = 575,830.30/x
  3. Step 3: Cross multiply
    827,772.70x = 1,241,659.05 × 575,830.30
  4. Step 4: Simplify right side
    827,772.70x = 714,984,903,259.22
  5. Step 5: Solve for x
    x = 714,984,903,259.22/827,772.70
  6. Step 6: Final answer
    x = 863,745.45

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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.