Home / 930,792.81-1,284,493.35-528,384.81

Finding the Fourth Proportional to 930,792.81, 1,284,493.35 and 528,384.81

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Solution

The fourth proportional to 930,792.81, 1,284,493.35 and 528,384.81 is: 729,170.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,792.81 : 1,284,493.35 = 528,384.81 : x
  2. Step 2: Convert to fraction form
    930,792.81/1,284,493.35 = 528,384.81/x
  3. Step 3: Cross multiply
    930,792.81x = 1,284,493.35 × 528,384.81
  4. Step 4: Simplify right side
    930,792.81x = 678,706,774,686.01
  5. Step 5: Solve for x
    x = 678,706,774,686.01/930,792.81
  6. Step 6: Final answer
    x = 729,170.62

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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.