Home / 317,485.93-438,157.47-174,270.23

Finding the Fourth Proportional to 317,485.93, 438,157.47 and 174,270.23

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Solution

The fourth proportional to 317,485.93, 438,157.47 and 174,270.23 is: 240,507.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,485.93 : 438,157.47 = 174,270.23 : x
  2. Step 2: Convert to fraction form
    317,485.93/438,157.47 = 174,270.23/x
  3. Step 3: Cross multiply
    317,485.93x = 438,157.47 × 174,270.23
  4. Step 4: Simplify right side
    317,485.93x = 76,357,803,073.12
  5. Step 5: Solve for x
    x = 76,357,803,073.12/317,485.93
  6. Step 6: Final answer
    x = 240,507.68

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Double scale
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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.