Home / 639,587.28-882,673.02-424,357.32

Finding the Fourth Proportional to 639,587.28, 882,673.02 and 424,357.32

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Solution

The fourth proportional to 639,587.28, 882,673.02 and 424,357.32 is: 585,641.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,587.28 : 882,673.02 = 424,357.32 : x
  2. Step 2: Convert to fraction form
    639,587.28/882,673.02 = 424,357.32/x
  3. Step 3: Cross multiply
    639,587.28x = 882,673.02 × 424,357.32
  4. Step 4: Simplify right side
    639,587.28x = 374,568,757,203.51
  5. Step 5: Solve for x
    x = 374,568,757,203.51/639,587.28
  6. Step 6: Final answer
    x = 585,641.35

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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.