Home / 457,965.15-686,835.72-357,877.11

Finding the Fourth Proportional to 457,965.15, 686,835.72 and 357,877.11

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Solution

The fourth proportional to 457,965.15, 686,835.72 and 357,877.11 is: 536,728.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,965.15 : 686,835.72 = 357,877.11 : x
  2. Step 2: Convert to fraction form
    457,965.15/686,835.72 = 357,877.11/x
  3. Step 3: Cross multiply
    457,965.15x = 686,835.72 × 357,877.11
  4. Step 4: Simplify right side
    457,965.15x = 245,802,782,518.37
  5. Step 5: Solve for x
    x = 245,802,782,518.37/457,965.15
  6. Step 6: Final answer
    x = 536,728.14

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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.