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Finding the Fourth Proportional to 423,958.74, 585,039.15 and 260,677.32

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Solution

The fourth proportional to 423,958.74, 585,039.15 and 260,677.32 is: 359,720.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,958.74 : 585,039.15 = 260,677.32 : x
  2. Step 2: Convert to fraction form
    423,958.74/585,039.15 = 260,677.32/x
  3. Step 3: Cross multiply
    423,958.74x = 585,039.15 × 260,677.32
  4. Step 4: Simplify right side
    423,958.74x = 152,506,437,717.08
  5. Step 5: Solve for x
    x = 152,506,437,717.08/423,958.74
  6. Step 6: Final answer
    x = 359,720.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.