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Finding the Fourth Proportional to 532,965.60, 735,501.60 and 318,063.96

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Solution

The fourth proportional to 532,965.60, 735,501.60 and 318,063.96 is: 438,933.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,965.60 : 735,501.60 = 318,063.96 : x
  2. Step 2: Convert to fraction form
    532,965.60/735,501.60 = 318,063.96/x
  3. Step 3: Cross multiply
    532,965.60x = 735,501.60 × 318,063.96
  4. Step 4: Simplify right side
    532,965.60x = 233,936,551,482.34
  5. Step 5: Solve for x
    x = 233,936,551,482.34/532,965.60
  6. Step 6: Final answer
    x = 438,933.68

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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.