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Finding the Fourth Proportional to 507,453.63, 700,285.95 and 278,019.06

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Solution

The fourth proportional to 507,453.63, 700,285.95 and 278,019.06 is: 383,666.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,453.63 : 700,285.95 = 278,019.06 : x
  2. Step 2: Convert to fraction form
    507,453.63/700,285.95 = 278,019.06/x
  3. Step 3: Cross multiply
    507,453.63x = 700,285.95 × 278,019.06
  4. Step 4: Simplify right side
    507,453.63x = 194,692,841,550.21
  5. Step 5: Solve for x
    x = 194,692,841,550.21/507,453.63
  6. Step 6: Final answer
    x = 383,666.27

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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.