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Finding the Fourth Proportional to 403,706.80, 604,831.20 and 235,089.10

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Solution

The fourth proportional to 403,706.80, 604,831.20 and 235,089.10 is: 352,209.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,706.80 : 604,831.20 = 235,089.10 : x
  2. Step 2: Convert to fraction form
    403,706.80/604,831.20 = 235,089.10/x
  3. Step 3: Cross multiply
    403,706.80x = 604,831.20 × 235,089.10
  4. Step 4: Simplify right side
    403,706.80x = 142,189,222,459.92
  5. Step 5: Solve for x
    x = 142,189,222,459.92/403,706.80
  6. Step 6: Final answer
    x = 352,209.13

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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.