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Finding the Fourth Proportional to 556,480.56, 832,854.60 and 456,636.72

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Solution

The fourth proportional to 556,480.56, 832,854.60 and 456,636.72 is: 683,423.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,480.56 : 832,854.60 = 456,636.72 : x
  2. Step 2: Convert to fraction form
    556,480.56/832,854.60 = 456,636.72/x
  3. Step 3: Cross multiply
    556,480.56x = 832,854.60 × 456,636.72
  4. Step 4: Simplify right side
    556,480.56x = 380,311,992,780.91
  5. Step 5: Solve for x
    x = 380,311,992,780.91/556,480.56
  6. Step 6: Final answer
    x = 683,423.68

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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.