Home / 1,657,211.40-2,286,688.08-931,918.92

Finding the Fourth Proportional to 1,657,211.40, 2,286,688.08 and 931,918.92

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Solution

The fourth proportional to 1,657,211.40, 2,286,688.08 and 931,918.92 is: 1,285,899.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,657,211.40 : 2,286,688.08 = 931,918.92 : x
  2. Step 2: Convert to fraction form
    1,657,211.40/2,286,688.08 = 931,918.92/x
  3. Step 3: Cross multiply
    1,657,211.40x = 2,286,688.08 × 931,918.92
  4. Step 4: Simplify right side
    1,657,211.40x = 2,131,007,885,890.47
  5. Step 5: Solve for x
    x = 2,131,007,885,890.47/1,657,211.40
  6. Step 6: Final answer
    x = 1,285,899.85

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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.