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Finding the Fourth Proportional to 517,589.84, 714,272.48 and 291,235.36

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Solution

The fourth proportional to 517,589.84, 714,272.48 and 291,235.36 is: 401,903.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,589.84 : 714,272.48 = 291,235.36 : x
  2. Step 2: Convert to fraction form
    517,589.84/714,272.48 = 291,235.36/x
  3. Step 3: Cross multiply
    517,589.84x = 714,272.48 × 291,235.36
  4. Step 4: Simplify right side
    517,589.84x = 208,021,402,850.89
  5. Step 5: Solve for x
    x = 208,021,402,850.89/517,589.84
  6. Step 6: Final answer
    x = 401,903.95

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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.