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Finding the Fourth Proportional to 556,948.20, 768,567.90 and 302,293.92

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Solution

The fourth proportional to 556,948.20, 768,567.90 and 302,293.92 is: 417,154.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,948.20 : 768,567.90 = 302,293.92 : x
  2. Step 2: Convert to fraction form
    556,948.20/768,567.90 = 302,293.92/x
  3. Step 3: Cross multiply
    556,948.20x = 768,567.90 × 302,293.92
  4. Step 4: Simplify right side
    556,948.20x = 232,333,403,277.17
  5. Step 5: Solve for x
    x = 232,333,403,277.17/556,948.20
  6. Step 6: Final answer
    x = 417,154.42

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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.