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Finding the Fourth Proportional to 613,582.89, 920,066.34 and 357,498.35

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Solution

The fourth proportional to 613,582.89, 920,066.34 and 357,498.35 is: 536,068.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,582.89 : 920,066.34 = 357,498.35 : x
  2. Step 2: Convert to fraction form
    613,582.89/920,066.34 = 357,498.35/x
  3. Step 3: Cross multiply
    613,582.89x = 920,066.34 × 357,498.35
  4. Step 4: Simplify right side
    613,582.89x = 328,922,198,440.54
  5. Step 5: Solve for x
    x = 328,922,198,440.54/613,582.89
  6. Step 6: Final answer
    x = 536,068.07

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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.