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Finding the Fourth Proportional to 570,153.48, 786,832.76 and 368,949.48

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Solution

The fourth proportional to 570,153.48, 786,832.76 and 368,949.48 is: 509,163.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,153.48 : 786,832.76 = 368,949.48 : x
  2. Step 2: Convert to fraction form
    570,153.48/786,832.76 = 368,949.48/x
  3. Step 3: Cross multiply
    570,153.48x = 786,832.76 × 368,949.48
  4. Step 4: Simplify right side
    570,153.48x = 290,301,537,648.97
  5. Step 5: Solve for x
    x = 290,301,537,648.97/570,153.48
  6. Step 6: Final answer
    x = 509,163.84

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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.