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Finding the Fourth Proportional to 1,386,774, 1,913,748.12 and 750,870

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Solution

The fourth proportional to 1,386,774, 1,913,748.12 and 750,870 is: 1,036,200.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,774 : 1,913,748.12 = 750,870 : x
  2. Step 2: Convert to fraction form
    1,386,774/1,913,748.12 = 750,870/x
  3. Step 3: Cross multiply
    1,386,774x = 1,913,748.12 × 750,870
  4. Step 4: Simplify right side
    1,386,774x = 1,436,976,050,864.40
  5. Step 5: Solve for x
    x = 1,436,976,050,864.40/1,386,774
  6. Step 6: Final answer
    x = 1,036,200.60

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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.