Home / 811,058.16-1,119,200.40-448,486.80

Finding the Fourth Proportional to 811,058.16, 1,119,200.40 and 448,486.80

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Solution

The fourth proportional to 811,058.16, 1,119,200.40 and 448,486.80 is: 618,878.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,058.16 : 1,119,200.40 = 448,486.80 : x
  2. Step 2: Convert to fraction form
    811,058.16/1,119,200.40 = 448,486.80/x
  3. Step 3: Cross multiply
    811,058.16x = 1,119,200.40 × 448,486.80
  4. Step 4: Simplify right side
    811,058.16x = 501,946,605,954.72
  5. Step 5: Solve for x
    x = 501,946,605,954.72/811,058.16
  6. Step 6: Final answer
    x = 618,878.68

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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.