Home / 684,030.09-944,055.29-393,635.69

Finding the Fourth Proportional to 684,030.09, 944,055.29 and 393,635.69

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Solution

The fourth proportional to 684,030.09, 944,055.29 and 393,635.69 is: 543,271.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,030.09 : 944,055.29 = 393,635.69 : x
  2. Step 2: Convert to fraction form
    684,030.09/944,055.29 = 393,635.69/x
  3. Step 3: Cross multiply
    684,030.09x = 944,055.29 × 393,635.69
  4. Step 4: Simplify right side
    684,030.09x = 371,613,855,477.30
  5. Step 5: Solve for x
    x = 371,613,855,477.30/684,030.09
  6. Step 6: Final answer
    x = 543,271.21

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Half scale
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Double scale
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Similar ratio
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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.