Home / 405,114.10-558,881.82-243,875.73

Finding the Fourth Proportional to 405,114.10, 558,881.82 and 243,875.73

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Solution

The fourth proportional to 405,114.10, 558,881.82 and 243,875.73 is: 336,442.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,114.10 : 558,881.82 = 243,875.73 : x
  2. Step 2: Convert to fraction form
    405,114.10/558,881.82 = 243,875.73/x
  3. Step 3: Cross multiply
    405,114.10x = 558,881.82 × 243,875.73
  4. Step 4: Simplify right side
    405,114.10x = 136,297,711,836.23
  5. Step 5: Solve for x
    x = 136,297,711,836.23/405,114.10
  6. Step 6: Final answer
    x = 336,442.77

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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.