Home / 1,583,381.40-2,185,013.18-938,418.70

Finding the Fourth Proportional to 1,583,381.40, 2,185,013.18 and 938,418.70

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Solution

The fourth proportional to 1,583,381.40, 2,185,013.18 and 938,418.70 is: 1,294,986.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,583,381.40 : 2,185,013.18 = 938,418.70 : x
  2. Step 2: Convert to fraction form
    1,583,381.40/2,185,013.18 = 938,418.70/x
  3. Step 3: Cross multiply
    1,583,381.40x = 2,185,013.18 × 938,418.70
  4. Step 4: Simplify right side
    1,583,381.40x = 2,050,457,227,858.47
  5. Step 5: Solve for x
    x = 2,050,457,227,858.47/1,583,381.40
  6. Step 6: Final answer
    x = 1,294,986.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.