Home / 317,820.40-438,631.20-183,684.40

Finding the Fourth Proportional to 317,820.40, 438,631.20 and 183,684.40

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Solution

The fourth proportional to 317,820.40, 438,631.20 and 183,684.40 is: 253,507.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,820.40 : 438,631.20 = 183,684.40 : x
  2. Step 2: Convert to fraction form
    317,820.40/438,631.20 = 183,684.40/x
  3. Step 3: Cross multiply
    317,820.40x = 438,631.20 × 183,684.40
  4. Step 4: Simplify right side
    317,820.40x = 80,569,708,793.28
  5. Step 5: Solve for x
    x = 80,569,708,793.28/317,820.40
  6. Step 6: Final answer
    x = 253,507.04

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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.