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Finding the Fourth Proportional to 318,599.19, 439,663.44 and 175,356.13

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Solution

The fourth proportional to 318,599.19, 439,663.44 and 175,356.13 is: 241,989.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,599.19 : 439,663.44 = 175,356.13 : x
  2. Step 2: Convert to fraction form
    318,599.19/439,663.44 = 175,356.13/x
  3. Step 3: Cross multiply
    318,599.19x = 439,663.44 × 175,356.13
  4. Step 4: Simplify right side
    318,599.19x = 77,097,679,340.89
  5. Step 5: Solve for x
    x = 77,097,679,340.89/318,599.19
  6. Step 6: Final answer
    x = 241,989.57

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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.