Home / 317,624.44-438,156.40-257,263.24

Finding the Fourth Proportional to 317,624.44, 438,156.40 and 257,263.24

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Solution

The fourth proportional to 317,624.44, 438,156.40 and 257,263.24 is: 354,889.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,624.44 : 438,156.40 = 257,263.24 : x
  2. Step 2: Convert to fraction form
    317,624.44/438,156.40 = 257,263.24/x
  3. Step 3: Cross multiply
    317,624.44x = 438,156.40 × 257,263.24
  4. Step 4: Simplify right side
    317,624.44x = 112,721,535,090.74
  5. Step 5: Solve for x
    x = 112,721,535,090.74/317,624.44
  6. Step 6: Final answer
    x = 354,889.36

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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.