Home / 913,328.24-1,260,395.42-505,458.20

Finding the Fourth Proportional to 913,328.24, 1,260,395.42 and 505,458.20

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Solution

The fourth proportional to 913,328.24, 1,260,395.42 and 505,458.20 is: 697,533.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,328.24 : 1,260,395.42 = 505,458.20 : x
  2. Step 2: Convert to fraction form
    913,328.24/1,260,395.42 = 505,458.20/x
  3. Step 3: Cross multiply
    913,328.24x = 1,260,395.42 × 505,458.20
  4. Step 4: Simplify right side
    913,328.24x = 637,077,200,905.14
  5. Step 5: Solve for x
    x = 637,077,200,905.14/913,328.24
  6. Step 6: Final answer
    x = 697,533.68

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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.