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Finding the Fourth Proportional to 425,944.58, 637,978.18 and 352,075.80

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Solution

The fourth proportional to 425,944.58, 637,978.18 and 352,075.80 is: 527,337.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,944.58 : 637,978.18 = 352,075.80 : x
  2. Step 2: Convert to fraction form
    425,944.58/637,978.18 = 352,075.80/x
  3. Step 3: Cross multiply
    425,944.58x = 637,978.18 × 352,075.80
  4. Step 4: Simplify right side
    425,944.58x = 224,616,678,106.04
  5. Step 5: Solve for x
    x = 224,616,678,106.04/425,944.58
  6. Step 6: Final answer
    x = 527,337.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.