Home / 318,650.32-439,749.12-175,416.40

Finding the Fourth Proportional to 318,650.32, 439,749.12 and 175,416.40

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Solution

The fourth proportional to 318,650.32, 439,749.12 and 175,416.40 is: 242,081.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,650.32 : 439,749.12 = 175,416.40 : x
  2. Step 2: Convert to fraction form
    318,650.32/439,749.12 = 175,416.40/x
  3. Step 3: Cross multiply
    318,650.32x = 439,749.12 × 175,416.40
  4. Step 4: Simplify right side
    318,650.32x = 77,139,207,533.57
  5. Step 5: Solve for x
    x = 77,139,207,533.57/318,650.32
  6. Step 6: Final answer
    x = 242,081.06

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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.