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Finding the Fourth Proportional to 328,681.72, 453,708.30 and 192,835

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Solution

The fourth proportional to 328,681.72, 453,708.30 and 192,835 is: 266,187.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,681.72 : 453,708.30 = 192,835 : x
  2. Step 2: Convert to fraction form
    328,681.72/453,708.30 = 192,835/x
  3. Step 3: Cross multiply
    328,681.72x = 453,708.30 × 192,835
  4. Step 4: Simplify right side
    328,681.72x = 87,490,840,030.50
  5. Step 5: Solve for x
    x = 87,490,840,030.50/328,681.72
  6. Step 6: Final answer
    x = 266,187.12

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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.