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Finding the Fourth Proportional to 560,544.64, 773,483.52 and 318,857.92

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Solution

The fourth proportional to 560,544.64, 773,483.52 and 318,857.92 is: 439,985.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,544.64 : 773,483.52 = 318,857.92 : x
  2. Step 2: Convert to fraction form
    560,544.64/773,483.52 = 318,857.92/x
  3. Step 3: Cross multiply
    560,544.64x = 773,483.52 × 318,857.92
  4. Step 4: Simplify right side
    560,544.64x = 246,631,346,341.48
  5. Step 5: Solve for x
    x = 246,631,346,341.48/560,544.64
  6. Step 6: Final answer
    x = 439,985.20

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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.