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Finding the Fourth Proportional to 434,085.68, 650,990.58 and 405,749.58

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Solution

The fourth proportional to 434,085.68, 650,990.58 and 405,749.58 is: 608,495.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,085.68 : 650,990.58 = 405,749.58 : x
  2. Step 2: Convert to fraction form
    434,085.68/650,990.58 = 405,749.58/x
  3. Step 3: Cross multiply
    434,085.68x = 650,990.58 × 405,749.58
  4. Step 4: Simplify right side
    434,085.68x = 264,139,155,484.89
  5. Step 5: Solve for x
    x = 264,139,155,484.89/434,085.68
  6. Step 6: Final answer
    x = 608,495.44

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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.