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Finding the Fourth Proportional to 455,547.74, 628,732.90 and 264,671.90

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Solution

The fourth proportional to 455,547.74, 628,732.90 and 264,671.90 is: 365,291.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,547.74 : 628,732.90 = 264,671.90 : x
  2. Step 2: Convert to fraction form
    455,547.74/628,732.90 = 264,671.90/x
  3. Step 3: Cross multiply
    455,547.74x = 628,732.90 × 264,671.90
  4. Step 4: Simplify right side
    455,547.74x = 166,407,931,235.51
  5. Step 5: Solve for x
    x = 166,407,931,235.51/455,547.74
  6. Step 6: Final answer
    x = 365,291.97

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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.