Home / 885,697.40-1,327,638.90-435,726.20

Finding the Fourth Proportional to 885,697.40, 1,327,638.90 and 435,726.20

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Solution

The fourth proportional to 885,697.40, 1,327,638.90 and 435,726.20 is: 653,143.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,697.40 : 1,327,638.90 = 435,726.20 : x
  2. Step 2: Convert to fraction form
    885,697.40/1,327,638.90 = 435,726.20/x
  3. Step 3: Cross multiply
    885,697.40x = 1,327,638.90 × 435,726.20
  4. Step 4: Simplify right side
    885,697.40x = 578,487,052,869.18
  5. Step 5: Solve for x
    x = 578,487,052,869.18/885,697.40
  6. Step 6: Final answer
    x = 653,143.00

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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.