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Finding the Fourth Proportional to 359,699.33, 496,267.19 and 256,349.81

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Solution

The fourth proportional to 359,699.33, 496,267.19 and 256,349.81 is: 353,678.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,699.33 : 496,267.19 = 256,349.81 : x
  2. Step 2: Convert to fraction form
    359,699.33/496,267.19 = 256,349.81/x
  3. Step 3: Cross multiply
    359,699.33x = 496,267.19 × 256,349.81
  4. Step 4: Simplify right side
    359,699.33x = 127,217,996,102.65
  5. Step 5: Solve for x
    x = 127,217,996,102.65/359,699.33
  6. Step 6: Final answer
    x = 353,678.72

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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.