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Finding the Fourth Proportional to 532,735.63, 735,189.56 and 318,000.25

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Solution

The fourth proportional to 532,735.63, 735,189.56 and 318,000.25 is: 438,848.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,735.63 : 735,189.56 = 318,000.25 : x
  2. Step 2: Convert to fraction form
    532,735.63/735,189.56 = 318,000.25/x
  3. Step 3: Cross multiply
    532,735.63x = 735,189.56 × 318,000.25
  4. Step 4: Simplify right side
    532,735.63x = 233,790,463,877.39
  5. Step 5: Solve for x
    x = 233,790,463,877.39/532,735.63
  6. Step 6: Final answer
    x = 438,848.94

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.