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Finding the Fourth Proportional to 553,622.04, 830,782.17 and 317,426.04

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Solution

The fourth proportional to 553,622.04, 830,782.17 and 317,426.04 is: 476,339.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,622.04 : 830,782.17 = 317,426.04 : x
  2. Step 2: Convert to fraction form
    553,622.04/830,782.17 = 317,426.04/x
  3. Step 3: Cross multiply
    553,622.04x = 830,782.17 × 317,426.04
  4. Step 4: Simplify right side
    553,622.04x = 263,711,894,325.71
  5. Step 5: Solve for x
    x = 263,711,894,325.71/553,622.04
  6. Step 6: Final answer
    x = 476,339.23

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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.