Home / 971,912.20-1,457,349.90-410,312.20

Finding the Fourth Proportional to 971,912.20, 1,457,349.90 and 410,312.20

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Solution

The fourth proportional to 971,912.20, 1,457,349.90 and 410,312.20 is: 615,249.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,912.20 : 1,457,349.90 = 410,312.20 : x
  2. Step 2: Convert to fraction form
    971,912.20/1,457,349.90 = 410,312.20/x
  3. Step 3: Cross multiply
    971,912.20x = 1,457,349.90 × 410,312.20
  4. Step 4: Simplify right side
    971,912.20x = 597,968,443,638.78
  5. Step 5: Solve for x
    x = 597,968,443,638.78/971,912.20
  6. Step 6: Final answer
    x = 615,249.45

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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.