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Finding the Fourth Proportional to 353,950.40, 488,459.76 and 192,814.40

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Solution

The fourth proportional to 353,950.40, 488,459.76 and 192,814.40 is: 266,088.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,950.40 : 488,459.76 = 192,814.40 : x
  2. Step 2: Convert to fraction form
    353,950.40/488,459.76 = 192,814.40/x
  3. Step 3: Cross multiply
    353,950.40x = 488,459.76 × 192,814.40
  4. Step 4: Simplify right side
    353,950.40x = 94,182,075,548.54
  5. Step 5: Solve for x
    x = 94,182,075,548.54/353,950.40
  6. Step 6: Final answer
    x = 266,088.34

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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.