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Finding the Fourth Proportional to 713,060.10, 1,068,870.40 and 447,007.50

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Solution

The fourth proportional to 713,060.10, 1,068,870.40 and 447,007.50 is: 670,060.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,060.10 : 1,068,870.40 = 447,007.50 : x
  2. Step 2: Convert to fraction form
    713,060.10/1,068,870.40 = 447,007.50/x
  3. Step 3: Cross multiply
    713,060.10x = 1,068,870.40 × 447,007.50
  4. Step 4: Simplify right side
    713,060.10x = 477,793,085,328.00
  5. Step 5: Solve for x
    x = 477,793,085,328.00/713,060.10
  6. Step 6: Final answer
    x = 670,060.05

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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.