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Finding the Fourth Proportional to 563,009.04, 776,941.20 and 308,358

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Solution

The fourth proportional to 563,009.04, 776,941.20 and 308,358 is: 425,527.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,009.04 : 776,941.20 = 308,358 : x
  2. Step 2: Convert to fraction form
    563,009.04/776,941.20 = 308,358/x
  3. Step 3: Cross multiply
    563,009.04x = 776,941.20 × 308,358
  4. Step 4: Simplify right side
    563,009.04x = 239,576,034,549.60
  5. Step 5: Solve for x
    x = 239,576,034,549.60/563,009.04
  6. Step 6: Final answer
    x = 425,527.86

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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.