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Finding the Fourth Proportional to 473,319.40, 710,382.30 and 193,037.80

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Solution

The fourth proportional to 473,319.40, 710,382.30 and 193,037.80 is: 289,721.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,319.40 : 710,382.30 = 193,037.80 : x
  2. Step 2: Convert to fraction form
    473,319.40/710,382.30 = 193,037.80/x
  3. Step 3: Cross multiply
    473,319.40x = 710,382.30 × 193,037.80
  4. Step 4: Simplify right side
    473,319.40x = 137,130,636,350.94
  5. Step 5: Solve for x
    x = 137,130,636,350.94/473,319.40
  6. Step 6: Final answer
    x = 289,721.14

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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.