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Finding the Fourth Proportional to 476,321.90, 714,332.27 and 156,421.04

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Solution

The fourth proportional to 476,321.90, 714,332.27 and 156,421.04 is: 234,582.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,321.90 : 714,332.27 = 156,421.04 : x
  2. Step 2: Convert to fraction form
    476,321.90/714,332.27 = 156,421.04/x
  3. Step 3: Cross multiply
    476,321.90x = 714,332.27 × 156,421.04
  4. Step 4: Simplify right side
    476,321.90x = 111,736,592,225.19
  5. Step 5: Solve for x
    x = 111,736,592,225.19/476,321.90
  6. Step 6: Final answer
    x = 234,582.10

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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.