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Finding the Fourth Proportional to 913,520, 1,370,410.68 and 282,482.48

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Solution

The fourth proportional to 913,520, 1,370,410.68 and 282,482.48 is: 423,764.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,520 : 1,370,410.68 = 282,482.48 : x
  2. Step 2: Convert to fraction form
    913,520/1,370,410.68 = 282,482.48/x
  3. Step 3: Cross multiply
    913,520x = 1,370,410.68 × 282,482.48
  4. Step 4: Simplify right side
    913,520x = 387,117,007,504.89
  5. Step 5: Solve for x
    x = 387,117,007,504.89/913,520
  6. Step 6: Final answer
    x = 423,764.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.