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Finding the Fourth Proportional to 417,143.37, 575,687.35 and 235,857.07

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Solution

The fourth proportional to 417,143.37, 575,687.35 and 235,857.07 is: 325,499.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,143.37 : 575,687.35 = 235,857.07 : x
  2. Step 2: Convert to fraction form
    417,143.37/575,687.35 = 235,857.07/x
  3. Step 3: Cross multiply
    417,143.37x = 575,687.35 × 235,857.07
  4. Step 4: Simplify right side
    417,143.37x = 135,779,931,607.07
  5. Step 5: Solve for x
    x = 135,779,931,607.07/417,143.37
  6. Step 6: Final answer
    x = 325,499.44

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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.