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Finding the Fourth Proportional to 359,703.45, 496,384.80 and 198,554.34

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Solution

The fourth proportional to 359,703.45, 496,384.80 and 198,554.34 is: 274,001.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,703.45 : 496,384.80 = 198,554.34 : x
  2. Step 2: Convert to fraction form
    359,703.45/496,384.80 = 198,554.34/x
  3. Step 3: Cross multiply
    359,703.45x = 496,384.80 × 198,554.34
  4. Step 4: Simplify right side
    359,703.45x = 98,559,356,350.03
  5. Step 5: Solve for x
    x = 98,559,356,350.03/359,703.45
  6. Step 6: Final answer
    x = 274,001.70

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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.