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Finding the Fourth Proportional to 499,075.92, 688,518.90 and 362,811.24

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Solution

The fourth proportional to 499,075.92, 688,518.90 and 362,811.24 is: 500,529.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,075.92 : 688,518.90 = 362,811.24 : x
  2. Step 2: Convert to fraction form
    499,075.92/688,518.90 = 362,811.24/x
  3. Step 3: Cross multiply
    499,075.92x = 688,518.90 × 362,811.24
  4. Step 4: Simplify right side
    499,075.92x = 249,802,395,872.44
  5. Step 5: Solve for x
    x = 249,802,395,872.44/499,075.92
  6. Step 6: Final answer
    x = 500,529.85

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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.