Home / 646,640.36-892,570.50-417,204.08

Finding the Fourth Proportional to 646,640.36, 892,570.50 and 417,204.08

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Solution

The fourth proportional to 646,640.36, 892,570.50 and 417,204.08 is: 575,875.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,640.36 : 892,570.50 = 417,204.08 : x
  2. Step 2: Convert to fraction form
    646,640.36/892,570.50 = 417,204.08/x
  3. Step 3: Cross multiply
    646,640.36x = 892,570.50 × 417,204.08
  4. Step 4: Simplify right side
    646,640.36x = 372,384,054,287.64
  5. Step 5: Solve for x
    x = 372,384,054,287.64/646,640.36
  6. Step 6: Final answer
    x = 575,875.06

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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.