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Finding the Fourth Proportional to 545,804.58, 752,699.44 and 431,356.64

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Solution

The fourth proportional to 545,804.58, 752,699.44 and 431,356.64 is: 594,868.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,804.58 : 752,699.44 = 431,356.64 : x
  2. Step 2: Convert to fraction form
    545,804.58/752,699.44 = 431,356.64/x
  3. Step 3: Cross multiply
    545,804.58x = 752,699.44 × 431,356.64
  4. Step 4: Simplify right side
    545,804.58x = 324,681,901,368.28
  5. Step 5: Solve for x
    x = 324,681,901,368.28/545,804.58
  6. Step 6: Final answer
    x = 594,868.41

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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.