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Finding the Fourth Proportional to 563,013.55, 776,959.11 and 304,892.53

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Solution

The fourth proportional to 563,013.55, 776,959.11 and 304,892.53 is: 420,751.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,013.55 : 776,959.11 = 304,892.53 : x
  2. Step 2: Convert to fraction form
    563,013.55/776,959.11 = 304,892.53/x
  3. Step 3: Cross multiply
    563,013.55x = 776,959.11 × 304,892.53
  4. Step 4: Simplify right side
    563,013.55x = 236,889,026,812.05
  5. Step 5: Solve for x
    x = 236,889,026,812.05/563,013.55
  6. Step 6: Final answer
    x = 420,751.91

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1.5x scale

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.