Home / 971,990.20-1,457,985.30-340,676.20

Finding the Fourth Proportional to 971,990.20, 1,457,985.30 and 340,676.20

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Solution

The fourth proportional to 971,990.20, 1,457,985.30 and 340,676.20 is: 511,014.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,990.20 : 1,457,985.30 = 340,676.20 : x
  2. Step 2: Convert to fraction form
    971,990.20/1,457,985.30 = 340,676.20/x
  3. Step 3: Cross multiply
    971,990.20x = 1,457,985.30 × 340,676.20
  4. Step 4: Simplify right side
    971,990.20x = 496,700,891,659.86
  5. Step 5: Solve for x
    x = 496,700,891,659.86/971,990.20
  6. Step 6: Final answer
    x = 511,014.30

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Half scale
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Double scale
Find fourth proportional to 971,991.20, 1,457,986.80 and 340,677.20
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.