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Finding the Fourth Proportional to 407,585.70, 611,135.55 and 249,927.30

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Solution

The fourth proportional to 407,585.70, 611,135.55 and 249,927.30 is: 374,741.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,585.70 : 611,135.55 = 249,927.30 : x
  2. Step 2: Convert to fraction form
    407,585.70/611,135.55 = 249,927.30/x
  3. Step 3: Cross multiply
    407,585.70x = 611,135.55 × 249,927.30
  4. Step 4: Simplify right side
    407,585.70x = 152,739,457,945.52
  5. Step 5: Solve for x
    x = 152,739,457,945.52/407,585.70
  6. Step 6: Final answer
    x = 374,741.94

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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.