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Finding the Fourth Proportional to 493,676.40, 740,514.60 and 435,615.60

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Solution

The fourth proportional to 493,676.40, 740,514.60 and 435,615.60 is: 653,423.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,676.40 : 740,514.60 = 435,615.60 : x
  2. Step 2: Convert to fraction form
    493,676.40/740,514.60 = 435,615.60/x
  3. Step 3: Cross multiply
    493,676.40x = 740,514.60 × 435,615.60
  4. Step 4: Simplify right side
    493,676.40x = 322,579,711,787.76
  5. Step 5: Solve for x
    x = 322,579,711,787.76/493,676.40
  6. Step 6: Final answer
    x = 653,423.40

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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.