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Finding the Fourth Proportional to 575,512.74, 794,178.45 and 317,434.59

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Solution

The fourth proportional to 575,512.74, 794,178.45 and 317,434.59 is: 438,043.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,512.74 : 794,178.45 = 317,434.59 : x
  2. Step 2: Convert to fraction form
    575,512.74/794,178.45 = 317,434.59/x
  3. Step 3: Cross multiply
    575,512.74x = 794,178.45 × 317,434.59
  4. Step 4: Simplify right side
    575,512.74x = 252,099,710,662.59
  5. Step 5: Solve for x
    x = 252,099,710,662.59/575,512.74
  6. Step 6: Final answer
    x = 438,043.67

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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.