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Finding the Fourth Proportional to 511,453.04, 767,400.79 and 274,518.92

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Solution

The fourth proportional to 511,453.04, 767,400.79 and 274,518.92 is: 411,897.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,453.04 : 767,400.79 = 274,518.92 : x
  2. Step 2: Convert to fraction form
    511,453.04/767,400.79 = 274,518.92/x
  3. Step 3: Cross multiply
    511,453.04x = 767,400.79 × 274,518.92
  4. Step 4: Simplify right side
    511,453.04x = 210,666,036,077.95
  5. Step 5: Solve for x
    x = 210,666,036,077.95/511,453.04
  6. Step 6: Final answer
    x = 411,897.12

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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.