Home / 1,664,511.40-2,492,543.10-915,711.40

Finding the Fourth Proportional to 1,664,511.40, 2,492,543.10 and 915,711.40

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Solution

The fourth proportional to 1,664,511.40, 2,492,543.10 and 915,711.40 is: 1,371,243.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,664,511.40 : 2,492,543.10 = 915,711.40 : x
  2. Step 2: Convert to fraction form
    1,664,511.40/2,492,543.10 = 915,711.40/x
  3. Step 3: Cross multiply
    1,664,511.40x = 2,492,543.10 × 915,711.40
  4. Step 4: Simplify right side
    1,664,511.40x = 2,282,450,131,661.34
  5. Step 5: Solve for x
    x = 2,282,450,131,661.34/1,664,511.40
  6. Step 6: Final answer
    x = 1,371,243.32

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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.