Home / 1,099,566.40-1,649,349.60-389,666.20

Finding the Fourth Proportional to 1,099,566.40, 1,649,349.60 and 389,666.20

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Solution

The fourth proportional to 1,099,566.40, 1,649,349.60 and 389,666.20 is: 584,499.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,099,566.40 : 1,649,349.60 = 389,666.20 : x
  2. Step 2: Convert to fraction form
    1,099,566.40/1,649,349.60 = 389,666.20/x
  3. Step 3: Cross multiply
    1,099,566.40x = 1,649,349.60 × 389,666.20
  4. Step 4: Simplify right side
    1,099,566.40x = 642,695,791,103.52
  5. Step 5: Solve for x
    x = 642,695,791,103.52/1,099,566.40
  6. Step 6: Final answer
    x = 584,499.30

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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.