Home / 916,880.40-1,375,320.60-838,083.60

Finding the Fourth Proportional to 916,880.40, 1,375,320.60 and 838,083.60

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Solution

The fourth proportional to 916,880.40, 1,375,320.60 and 838,083.60 is: 1,257,125.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,880.40 : 1,375,320.60 = 838,083.60 : x
  2. Step 2: Convert to fraction form
    916,880.40/1,375,320.60 = 838,083.60/x
  3. Step 3: Cross multiply
    916,880.40x = 1,375,320.60 × 838,083.60
  4. Step 4: Simplify right side
    916,880.40x = 1,152,633,639,602.16
  5. Step 5: Solve for x
    x = 1,152,633,639,602.16/916,880.40
  6. Step 6: Final answer
    x = 1,257,125.40

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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.