Home / 505,269.36-697,271.04-278,914.32

Finding the Fourth Proportional to 505,269.36, 697,271.04 and 278,914.32

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Solution

The fourth proportional to 505,269.36, 697,271.04 and 278,914.32 is: 384,901.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,269.36 : 697,271.04 = 278,914.32 : x
  2. Step 2: Convert to fraction form
    505,269.36/697,271.04 = 278,914.32/x
  3. Step 3: Cross multiply
    505,269.36x = 697,271.04 × 278,914.32
  4. Step 4: Simplify right side
    505,269.36x = 194,478,877,977.29
  5. Step 5: Solve for x
    x = 194,478,877,977.29/505,269.36
  6. Step 6: Final answer
    x = 384,901.39

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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.