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Finding the Fourth Proportional to 561,482.28, 774,924.57 and 357,468.03

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Solution

The fourth proportional to 561,482.28, 774,924.57 and 357,468.03 is: 493,356.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,482.28 : 774,924.57 = 357,468.03 : x
  2. Step 2: Convert to fraction form
    561,482.28/774,924.57 = 357,468.03/x
  3. Step 3: Cross multiply
    561,482.28x = 774,924.57 × 357,468.03
  4. Step 4: Simplify right side
    561,482.28x = 277,010,759,436.50
  5. Step 5: Solve for x
    x = 277,010,759,436.50/561,482.28
  6. Step 6: Final answer
    x = 493,356.19

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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.