Home / 1,185,938.86-1,636,596.69-642,075.04

Finding the Fourth Proportional to 1,185,938.86, 1,636,596.69 and 642,075.04

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Solution

The fourth proportional to 1,185,938.86, 1,636,596.69 and 642,075.04 is: 886,064.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,938.86 : 1,636,596.69 = 642,075.04 : x
  2. Step 2: Convert to fraction form
    1,185,938.86/1,636,596.69 = 642,075.04/x
  3. Step 3: Cross multiply
    1,185,938.86x = 1,636,596.69 × 642,075.04
  4. Step 4: Simplify right side
    1,185,938.86x = 1,050,817,885,195.62
  5. Step 5: Solve for x
    x = 1,050,817,885,195.62/1,185,938.86
  6. Step 6: Final answer
    x = 886,064.13

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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.