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Finding the Fourth Proportional to 357,785.59, 493,538.53 and 223,416.31

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Solution

The fourth proportional to 357,785.59, 493,538.53 and 223,416.31 is: 308,186.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,785.59 : 493,538.53 = 223,416.31 : x
  2. Step 2: Convert to fraction form
    357,785.59/493,538.53 = 223,416.31/x
  3. Step 3: Cross multiply
    357,785.59x = 493,538.53 × 223,416.31
  4. Step 4: Simplify right side
    357,785.59x = 110,264,557,215.42
  5. Step 5: Solve for x
    x = 110,264,557,215.42/357,785.59
  6. Step 6: Final answer
    x = 308,186.13

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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.