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Finding the Fourth Proportional to 377,774.31, 521,365.32 and 282,114.93

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Solution

The fourth proportional to 377,774.31, 521,365.32 and 282,114.93 is: 389,346.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,774.31 : 521,365.32 = 282,114.93 : x
  2. Step 2: Convert to fraction form
    377,774.31/521,365.32 = 282,114.93/x
  3. Step 3: Cross multiply
    377,774.31x = 521,365.32 × 282,114.93
  4. Step 4: Simplify right side
    377,774.31x = 147,084,940,756.23
  5. Step 5: Solve for x
    x = 147,084,940,756.23/377,774.31
  6. Step 6: Final answer
    x = 389,346.06

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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.