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Finding the Fourth Proportional to 491,763.40, 736,478.70 and 491,763.40

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Solution

The fourth proportional to 491,763.40, 736,478.70 and 491,763.40 is: 736,478.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,763.40 : 736,478.70 = 491,763.40 : x
  2. Step 2: Convert to fraction form
    491,763.40/736,478.70 = 491,763.40/x
  3. Step 3: Cross multiply
    491,763.40x = 736,478.70 × 491,763.40
  4. Step 4: Simplify right side
    491,763.40x = 362,173,269,539.58
  5. Step 5: Solve for x
    x = 362,173,269,539.58/491,763.40
  6. Step 6: Final answer
    x = 736,478.70

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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.