Home / 696,122.10-1,045,167.30-430,401.60

Finding the Fourth Proportional to 696,122.10, 1,045,167.30 and 430,401.60

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Solution

The fourth proportional to 696,122.10, 1,045,167.30 and 430,401.60 is: 646,210.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,122.10 : 1,045,167.30 = 430,401.60 : x
  2. Step 2: Convert to fraction form
    696,122.10/1,045,167.30 = 430,401.60/x
  3. Step 3: Cross multiply
    696,122.10x = 1,045,167.30 × 430,401.60
  4. Step 4: Simplify right side
    696,122.10x = 449,841,678,187.68
  5. Step 5: Solve for x
    x = 449,841,678,187.68/696,122.10
  6. Step 6: Final answer
    x = 646,210.88

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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.