Home / 1,185,956.98-1,636,600.81-642,088.35

Finding the Fourth Proportional to 1,185,956.98, 1,636,600.81 and 642,088.35

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Solution

The fourth proportional to 1,185,956.98, 1,636,600.81 and 642,088.35 is: 886,071.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,956.98 : 1,636,600.81 = 642,088.35 : x
  2. Step 2: Convert to fraction form
    1,185,956.98/1,636,600.81 = 642,088.35/x
  3. Step 3: Cross multiply
    1,185,956.98x = 1,636,600.81 × 642,088.35
  4. Step 4: Simplify right side
    1,185,956.98x = 1,050,842,313,701.56
  5. Step 5: Solve for x
    x = 1,050,842,313,701.56/1,185,956.98
  6. Step 6: Final answer
    x = 886,071.19

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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.