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Finding the Fourth Proportional to 612,595.71, 845,258.20 and 357,897.69

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Solution

The fourth proportional to 612,595.71, 845,258.20 and 357,897.69 is: 493,826.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,595.71 : 845,258.20 = 357,897.69 : x
  2. Step 2: Convert to fraction form
    612,595.71/845,258.20 = 357,897.69/x
  3. Step 3: Cross multiply
    612,595.71x = 845,258.20 × 357,897.69
  4. Step 4: Simplify right side
    612,595.71x = 302,515,957,233.56
  5. Step 5: Solve for x
    x = 302,515,957,233.56/612,595.71
  6. Step 6: Final answer
    x = 493,826.44

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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.