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Finding the Fourth Proportional to 575,868.99, 863,803.35 and 309,262.77

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Solution

The fourth proportional to 575,868.99, 863,803.35 and 309,262.77 is: 463,894.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,868.99 : 863,803.35 = 309,262.77 : x
  2. Step 2: Convert to fraction form
    575,868.99/863,803.35 = 309,262.77/x
  3. Step 3: Cross multiply
    575,868.99x = 863,803.35 × 309,262.77
  4. Step 4: Simplify right side
    575,868.99x = 267,142,216,756.28
  5. Step 5: Solve for x
    x = 267,142,216,756.28/575,868.99
  6. Step 6: Final answer
    x = 463,894.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.