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Finding the Fourth Proportional to 497,762.40, 746,643.48 and 123,785.40

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Solution

The fourth proportional to 497,762.40, 746,643.48 and 123,785.40 is: 185,678.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,762.40 : 746,643.48 = 123,785.40 : x
  2. Step 2: Convert to fraction form
    497,762.40/746,643.48 = 123,785.40/x
  3. Step 3: Cross multiply
    497,762.40x = 746,643.48 × 123,785.40
  4. Step 4: Simplify right side
    497,762.40x = 92,423,561,829.19
  5. Step 5: Solve for x
    x = 92,423,561,829.19/497,762.40
  6. Step 6: Final answer
    x = 185,678.07

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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.