Home / 877,085.20-1,314,607.20-403,818.40

Finding the Fourth Proportional to 877,085.20, 1,314,607.20 and 403,818.40

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Solution

The fourth proportional to 877,085.20, 1,314,607.20 and 403,818.40 is: 605,257.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,085.20 : 1,314,607.20 = 403,818.40 : x
  2. Step 2: Convert to fraction form
    877,085.20/1,314,607.20 = 403,818.40/x
  3. Step 3: Cross multiply
    877,085.20x = 1,314,607.20 × 403,818.40
  4. Step 4: Simplify right side
    877,085.20x = 530,862,576,132.48
  5. Step 5: Solve for x
    x = 530,862,576,132.48/877,085.20
  6. Step 6: Final answer
    x = 605,257.71

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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.