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Finding the Fourth Proportional to 553,264.40, 829,896.60 and 317,068.40

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Solution

The fourth proportional to 553,264.40, 829,896.60 and 317,068.40 is: 475,602.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,264.40 : 829,896.60 = 317,068.40 : x
  2. Step 2: Convert to fraction form
    553,264.40/829,896.60 = 317,068.40/x
  3. Step 3: Cross multiply
    553,264.40x = 829,896.60 × 317,068.40
  4. Step 4: Simplify right side
    553,264.40x = 263,133,987,127.44
  5. Step 5: Solve for x
    x = 263,133,987,127.44/553,264.40
  6. Step 6: Final answer
    x = 475,602.60

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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.