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Finding the Fourth Proportional to 314,950.90, 472,455.15 and 127,923.70

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Solution

The fourth proportional to 314,950.90, 472,455.15 and 127,923.70 is: 191,897.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,950.90 : 472,455.15 = 127,923.70 : x
  2. Step 2: Convert to fraction form
    314,950.90/472,455.15 = 127,923.70/x
  3. Step 3: Cross multiply
    314,950.90x = 472,455.15 × 127,923.70
  4. Step 4: Simplify right side
    314,950.90x = 60,438,210,872.06
  5. Step 5: Solve for x
    x = 60,438,210,872.06/314,950.90
  6. Step 6: Final answer
    x = 191,897.25

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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.