Home / 853,800.90-1,282,177.58-455,220.15

Finding the Fourth Proportional to 853,800.90, 1,282,177.58 and 455,220.15

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Solution

The fourth proportional to 853,800.90, 1,282,177.58 and 455,220.15 is: 683,617.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,800.90 : 1,282,177.58 = 455,220.15 : x
  2. Step 2: Convert to fraction form
    853,800.90/1,282,177.58 = 455,220.15/x
  3. Step 3: Cross multiply
    853,800.90x = 1,282,177.58 × 455,220.15
  4. Step 4: Simplify right side
    853,800.90x = 583,673,068,018.14
  5. Step 5: Solve for x
    x = 583,673,068,018.14/853,800.90
  6. Step 6: Final answer
    x = 683,617.30

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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.