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Finding the Fourth Proportional to 575,861.16, 863,421.60 and 239,134.16

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Solution

The fourth proportional to 575,861.16, 863,421.60 and 239,134.16 is: 358,547.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,861.16 : 863,421.60 = 239,134.16 : x
  2. Step 2: Convert to fraction form
    575,861.16/863,421.60 = 239,134.16/x
  3. Step 3: Cross multiply
    575,861.16x = 863,421.60 × 239,134.16
  4. Step 4: Simplify right side
    575,861.16x = 206,473,599,041.86
  5. Step 5: Solve for x
    x = 206,473,599,041.86/575,861.16
  6. Step 6: Final answer
    x = 358,547.53

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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.