Home / 1,186,200.05-1,636,953.10-642,335.83

Finding the Fourth Proportional to 1,186,200.05, 1,636,953.10 and 642,335.83

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Solution

The fourth proportional to 1,186,200.05, 1,636,953.10 and 642,335.83 is: 886,421.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,200.05 : 1,636,953.10 = 642,335.83 : x
  2. Step 2: Convert to fraction form
    1,186,200.05/1,636,953.10 = 642,335.83/x
  3. Step 3: Cross multiply
    1,186,200.05x = 1,636,953.10 × 642,335.83
  4. Step 4: Simplify right side
    1,186,200.05x = 1,051,473,622,461.35
  5. Step 5: Solve for x
    x = 1,051,473,622,461.35/1,186,200.05
  6. Step 6: Final answer
    x = 886,421.84

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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.