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Finding the Fourth Proportional to 572,573.88, 790,176.06 and 317,948.76

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Solution

The fourth proportional to 572,573.88, 790,176.06 and 317,948.76 is: 438,782.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,573.88 : 790,176.06 = 317,948.76 : x
  2. Step 2: Convert to fraction form
    572,573.88/790,176.06 = 317,948.76/x
  3. Step 3: Cross multiply
    572,573.88x = 790,176.06 × 317,948.76
  4. Step 4: Simplify right side
    572,573.88x = 251,235,498,458.69
  5. Step 5: Solve for x
    x = 251,235,498,458.69/572,573.88
  6. Step 6: Final answer
    x = 438,782.67

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Double scale
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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.