Home / 930,644.05-1,284,089.57-543,283.66

Finding the Fourth Proportional to 930,644.05, 1,284,089.57 and 543,283.66

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Solution

The fourth proportional to 930,644.05, 1,284,089.57 and 543,283.66 is: 749,615.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,644.05 : 1,284,089.57 = 543,283.66 : x
  2. Step 2: Convert to fraction form
    930,644.05/1,284,089.57 = 543,283.66/x
  3. Step 3: Cross multiply
    930,644.05x = 1,284,089.57 × 543,283.66
  4. Step 4: Simplify right side
    930,644.05x = 697,624,875,430.78
  5. Step 5: Solve for x
    x = 697,624,875,430.78/930,644.05
  6. Step 6: Final answer
    x = 749,615.15

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Double scale
Find fourth proportional to 930,645.05, 1,284,090.94 and 543,284.66
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1.5x scale

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.