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Finding the Fourth Proportional to 403,725.60, 605,588.40 and 297,437.40

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Solution

The fourth proportional to 403,725.60, 605,588.40 and 297,437.40 is: 446,156.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,725.60 : 605,588.40 = 297,437.40 : x
  2. Step 2: Convert to fraction form
    403,725.60/605,588.40 = 297,437.40/x
  3. Step 3: Cross multiply
    403,725.60x = 605,588.40 × 297,437.40
  4. Step 4: Simplify right side
    403,725.60x = 180,124,639,166.16
  5. Step 5: Solve for x
    x = 180,124,639,166.16/403,725.60
  6. Step 6: Final answer
    x = 446,156.10

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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.