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Finding the Fourth Proportional to 672,774.72, 928,381.68 and 370,962.24

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Solution

The fourth proportional to 672,774.72, 928,381.68 and 370,962.24 is: 511,901.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,774.72 : 928,381.68 = 370,962.24 : x
  2. Step 2: Convert to fraction form
    672,774.72/928,381.68 = 370,962.24/x
  3. Step 3: Cross multiply
    672,774.72x = 928,381.68 × 370,962.24
  4. Step 4: Simplify right side
    672,774.72x = 344,394,547,587.76
  5. Step 5: Solve for x
    x = 344,394,547,587.76/672,774.72
  6. Step 6: Final answer
    x = 511,901.74

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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.