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Finding the Fourth Proportional to 913,478.80, 1,369,051.80 and 702,068.80

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Solution

The fourth proportional to 913,478.80, 1,369,051.80 and 702,068.80 is: 1,052,206.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,478.80 : 1,369,051.80 = 702,068.80 : x
  2. Step 2: Convert to fraction form
    913,478.80/1,369,051.80 = 702,068.80/x
  3. Step 3: Cross multiply
    913,478.80x = 1,369,051.80 × 702,068.80
  4. Step 4: Simplify right side
    913,478.80x = 961,168,554,363.84
  5. Step 5: Solve for x
    x = 961,168,554,363.84/913,478.80
  6. Step 6: Final answer
    x = 1,052,206.74

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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.