Home / 1,560,205.80-2,153,320.20-915,915.60

Finding the Fourth Proportional to 1,560,205.80, 2,153,320.20 and 915,915.60

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Solution

The fourth proportional to 1,560,205.80, 2,153,320.20 and 915,915.60 is: 1,264,102.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,560,205.80 : 2,153,320.20 = 915,915.60 : x
  2. Step 2: Convert to fraction form
    1,560,205.80/2,153,320.20 = 915,915.60/x
  3. Step 3: Cross multiply
    1,560,205.80x = 2,153,320.20 × 915,915.60
  4. Step 4: Simplify right side
    1,560,205.80x = 1,972,259,562,975.12
  5. Step 5: Solve for x
    x = 1,972,259,562,975.12/1,560,205.80
  6. Step 6: Final answer
    x = 1,264,102.19

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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.