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Finding the Fourth Proportional to 328,417.58, 453,423.11 and 251,794.59

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Solution

The fourth proportional to 328,417.58, 453,423.11 and 251,794.59 is: 347,635.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,417.58 : 453,423.11 = 251,794.59 : x
  2. Step 2: Convert to fraction form
    328,417.58/453,423.11 = 251,794.59/x
  3. Step 3: Cross multiply
    328,417.58x = 453,423.11 × 251,794.59
  4. Step 4: Simplify right side
    328,417.58x = 114,169,484,820.00
  5. Step 5: Solve for x
    x = 114,169,484,820.00/328,417.58
  6. Step 6: Final answer
    x = 347,635.13

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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.