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Finding the Fourth Proportional to 614,369.58, 921,720.42 and 187,920.38

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Solution

The fourth proportional to 614,369.58, 921,720.42 and 187,920.38 is: 281,931.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,369.58 : 921,720.42 = 187,920.38 : x
  2. Step 2: Convert to fraction form
    614,369.58/921,720.42 = 187,920.38/x
  3. Step 3: Cross multiply
    614,369.58x = 921,720.42 × 187,920.38
  4. Step 4: Simplify right side
    614,369.58x = 173,210,051,580.16
  5. Step 5: Solve for x
    x = 173,210,051,580.16/614,369.58
  6. Step 6: Final answer
    x = 281,931.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.