Home / 817,663.36-1,128,281.10-473,505.88

Finding the Fourth Proportional to 817,663.36, 1,128,281.10 and 473,505.88

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Solution

The fourth proportional to 817,663.36, 1,128,281.10 and 473,505.88 is: 653,383.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,663.36 : 1,128,281.10 = 473,505.88 : x
  2. Step 2: Convert to fraction form
    817,663.36/1,128,281.10 = 473,505.88/x
  3. Step 3: Cross multiply
    817,663.36x = 1,128,281.10 × 473,505.88
  4. Step 4: Simplify right side
    817,663.36x = 534,247,735,142.87
  5. Step 5: Solve for x
    x = 534,247,735,142.87/817,663.36
  6. Step 6: Final answer
    x = 653,383.48

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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.