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Finding the Fourth Proportional to 403,720.60, 604,916.70 and 245,472.52

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Solution

The fourth proportional to 403,720.60, 604,916.70 and 245,472.52 is: 367,804.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,720.60 : 604,916.70 = 245,472.52 : x
  2. Step 2: Convert to fraction form
    403,720.60/604,916.70 = 245,472.52/x
  3. Step 3: Cross multiply
    403,720.60x = 604,916.70 × 245,472.52
  4. Step 4: Simplify right side
    403,720.60x = 148,490,426,739.08
  5. Step 5: Solve for x
    x = 148,490,426,739.08/403,720.60
  6. Step 6: Final answer
    x = 367,804.93

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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.