Home / 919,401,187.80-1,268,800,608.06-501,740,442.84

Finding the Fourth Proportional to 919,401,187.80, 1,268,800,608.06 and 501,740,442.84

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Solution

The fourth proportional to 919,401,187.80, 1,268,800,608.06 and 501,740,442.84 is: 692,416,528.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,401,187.80 : 1,268,800,608.06 = 501,740,442.84 : x
  2. Step 2: Convert to fraction form
    919,401,187.80/1,268,800,608.06 = 501,740,442.84/x
  3. Step 3: Cross multiply
    919,401,187.80x = 1,268,800,608.06 × 501,740,442.84
  4. Step 4: Simplify right side
    919,401,187.80x = 636,608,578,963,685,632
  5. Step 5: Solve for x
    x = 636,608,578,963,685,632/919,401,187.80
  6. Step 6: Final answer
    x = 692,416,528.73

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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.