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Finding the Fourth Proportional to 405,097.16, 607,775.54 and 283,644.20

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Solution

The fourth proportional to 405,097.16, 607,775.54 and 283,644.20 is: 425,557.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,097.16 : 607,775.54 = 283,644.20 : x
  2. Step 2: Convert to fraction form
    405,097.16/607,775.54 = 283,644.20/x
  3. Step 3: Cross multiply
    405,097.16x = 607,775.54 × 283,644.20
  4. Step 4: Simplify right side
    405,097.16x = 172,392,010,214.77
  5. Step 5: Solve for x
    x = 172,392,010,214.77/405,097.16
  6. Step 6: Final answer
    x = 425,557.20

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1.5x scale

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.