Home / 2,983,618.80-4,475,428.20-853,772.40

Finding the Fourth Proportional to 2,983,618.80, 4,475,428.20 and 853,772.40

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Solution

The fourth proportional to 2,983,618.80, 4,475,428.20 and 853,772.40 is: 1,280,658.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,983,618.80 : 4,475,428.20 = 853,772.40 : x
  2. Step 2: Convert to fraction form
    2,983,618.80/4,475,428.20 = 853,772.40/x
  3. Step 3: Cross multiply
    2,983,618.80x = 4,475,428.20 × 853,772.40
  4. Step 4: Simplify right side
    2,983,618.80x = 3,820,997,075,341.68
  5. Step 5: Solve for x
    x = 3,820,997,075,341.68/2,983,618.80
  6. Step 6: Final answer
    x = 1,280,658.60

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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.