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Finding the Fourth Proportional to 616,421.80, 925,323.90 and 476,799.40

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Solution

The fourth proportional to 616,421.80, 925,323.90 and 476,799.40 is: 715,733.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,421.80 : 925,323.90 = 476,799.40 : x
  2. Step 2: Convert to fraction form
    616,421.80/925,323.90 = 476,799.40/x
  3. Step 3: Cross multiply
    616,421.80x = 925,323.90 × 476,799.40
  4. Step 4: Simplify right side
    616,421.80x = 441,193,880,325.66
  5. Step 5: Solve for x
    x = 441,193,880,325.66/616,421.80
  6. Step 6: Final answer
    x = 715,733.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.