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Finding the Fourth Proportional to 713,758.80, 1,069,601.40 and 608,005.20

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Solution

The fourth proportional to 713,758.80, 1,069,601.40 and 608,005.20 is: 911,124.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,758.80 : 1,069,601.40 = 608,005.20 : x
  2. Step 2: Convert to fraction form
    713,758.80/1,069,601.40 = 608,005.20/x
  3. Step 3: Cross multiply
    713,758.80x = 1,069,601.40 × 608,005.20
  4. Step 4: Simplify right side
    713,758.80x = 650,323,213,127.28
  5. Step 5: Solve for x
    x = 650,323,213,127.28/713,758.80
  6. Step 6: Final answer
    x = 911,124.62

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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.