Home / 930,901.76-1,284,661.42-517,477.36

Finding the Fourth Proportional to 930,901.76, 1,284,661.42 and 517,477.36

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Solution

The fourth proportional to 930,901.76, 1,284,661.42 and 517,477.36 is: 714,128.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,901.76 : 1,284,661.42 = 517,477.36 : x
  2. Step 2: Convert to fraction form
    930,901.76/1,284,661.42 = 517,477.36/x
  3. Step 3: Cross multiply
    930,901.76x = 1,284,661.42 × 517,477.36
  4. Step 4: Simplify right side
    930,901.76x = 664,783,200,115.45
  5. Step 5: Solve for x
    x = 664,783,200,115.45/930,901.76
  6. Step 6: Final answer
    x = 714,128.20

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Double scale
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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.