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Finding the Fourth Proportional to 556,913.31, 768,541.13 and 302,264.52

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Solution

The fourth proportional to 556,913.31, 768,541.13 and 302,264.52 is: 417,125.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,913.31 : 768,541.13 = 302,264.52 : x
  2. Step 2: Convert to fraction form
    556,913.31/768,541.13 = 302,264.52/x
  3. Step 3: Cross multiply
    556,913.31x = 768,541.13 × 302,264.52
  4. Step 4: Simplify right side
    556,913.31x = 232,302,715,759.71
  5. Step 5: Solve for x
    x = 232,302,715,759.71/556,913.31
  6. Step 6: Final answer
    x = 417,125.45

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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.