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Finding the Fourth Proportional to 935,696, 1,291,182 and 553,655.84

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Solution

The fourth proportional to 935,696, 1,291,182 and 553,655.84 is: 763,998.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,696 : 1,291,182 = 553,655.84 : x
  2. Step 2: Convert to fraction form
    935,696/1,291,182 = 553,655.84/x
  3. Step 3: Cross multiply
    935,696x = 1,291,182 × 553,655.84
  4. Step 4: Simplify right side
    935,696x = 714,870,454,802.88
  5. Step 5: Solve for x
    x = 714,870,454,802.88/935,696
  6. Step 6: Final answer
    x = 763,998.62

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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.