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Finding the Fourth Proportional to 316,289.84, 436,479.71 and 173,050.46

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Solution

The fourth proportional to 316,289.84, 436,479.71 and 173,050.46 is: 238,809.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,289.84 : 436,479.71 = 173,050.46 : x
  2. Step 2: Convert to fraction form
    316,289.84/436,479.71 = 173,050.46/x
  3. Step 3: Cross multiply
    316,289.84x = 436,479.71 × 173,050.46
  4. Step 4: Simplify right side
    316,289.84x = 75,533,011,548.52
  5. Step 5: Solve for x
    x = 75,533,011,548.52/316,289.84
  6. Step 6: Final answer
    x = 238,809.48

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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.