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Finding the Fourth Proportional to 480,705.07, 663,345.99 and 262,870.51

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Solution

The fourth proportional to 480,705.07, 663,345.99 and 262,870.51 is: 362,746.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,705.07 : 663,345.99 = 262,870.51 : x
  2. Step 2: Convert to fraction form
    480,705.07/663,345.99 = 262,870.51/x
  3. Step 3: Cross multiply
    480,705.07x = 663,345.99 × 262,870.51
  4. Step 4: Simplify right side
    480,705.07x = 174,374,097,039.39
  5. Step 5: Solve for x
    x = 174,374,097,039.39/480,705.07
  6. Step 6: Final answer
    x = 362,746.53

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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.