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Finding the Fourth Proportional to 558,807.66, 771,133.16 and 317,075.82

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Solution

The fourth proportional to 558,807.66, 771,133.16 and 317,075.82 is: 437,552.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,807.66 : 771,133.16 = 317,075.82 : x
  2. Step 2: Convert to fraction form
    558,807.66/771,133.16 = 317,075.82/x
  3. Step 3: Cross multiply
    558,807.66x = 771,133.16 × 317,075.82
  4. Step 4: Simplify right side
    558,807.66x = 244,507,673,595.15
  5. Step 5: Solve for x
    x = 244,507,673,595.15/558,807.66
  6. Step 6: Final answer
    x = 437,552.48

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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.