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Finding the Fourth Proportional to 678,300.60, 933,705.72 and 586,377.48

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Solution

The fourth proportional to 678,300.60, 933,705.72 and 586,377.48 is: 807,170.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,300.60 : 933,705.72 = 586,377.48 : x
  2. Step 2: Convert to fraction form
    678,300.60/933,705.72 = 586,377.48/x
  3. Step 3: Cross multiply
    678,300.60x = 933,705.72 × 586,377.48
  4. Step 4: Simplify right side
    678,300.60x = 547,504,007,155.19
  5. Step 5: Solve for x
    x = 547,504,007,155.19/678,300.60
  6. Step 6: Final answer
    x = 807,170.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.