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Finding the Fourth Proportional to 553,400.64, 763,804.08 and 362,344.32

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Solution

The fourth proportional to 553,400.64, 763,804.08 and 362,344.32 is: 500,107.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,400.64 : 763,804.08 = 362,344.32 : x
  2. Step 2: Convert to fraction form
    553,400.64/763,804.08 = 362,344.32/x
  3. Step 3: Cross multiply
    553,400.64x = 763,804.08 × 362,344.32
  4. Step 4: Simplify right side
    553,400.64x = 276,760,069,980.83
  5. Step 5: Solve for x
    x = 276,760,069,980.83/553,400.64
  6. Step 6: Final answer
    x = 500,107.97

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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.