Home / 905,353.79-1,357,084.79-665,110.47

Finding the Fourth Proportional to 905,353.79, 1,357,084.79 and 665,110.47

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Solution

The fourth proportional to 905,353.79, 1,357,084.79 and 665,110.47 is: 996,970.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,353.79 : 1,357,084.79 = 665,110.47 : x
  2. Step 2: Convert to fraction form
    905,353.79/1,357,084.79 = 665,110.47/x
  3. Step 3: Cross multiply
    905,353.79x = 1,357,084.79 × 665,110.47
  4. Step 4: Simplify right side
    905,353.79x = 902,611,302,506.75
  5. Step 5: Solve for x
    x = 902,611,302,506.75/905,353.79
  6. Step 6: Final answer
    x = 996,970.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.