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Finding the Fourth Proportional to 554,916, 765,784.08 and 316,452

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Solution

The fourth proportional to 554,916, 765,784.08 and 316,452 is: 436,703.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,916 : 765,784.08 = 316,452 : x
  2. Step 2: Convert to fraction form
    554,916/765,784.08 = 316,452/x
  3. Step 3: Cross multiply
    554,916x = 765,784.08 × 316,452
  4. Step 4: Simplify right side
    554,916x = 242,333,903,684.16
  5. Step 5: Solve for x
    x = 242,333,903,684.16/554,916
  6. Step 6: Final answer
    x = 436,703.76

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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.