Home / 518,193.03-777,289.55-202,428.51

Finding the Fourth Proportional to 518,193.03, 777,289.55 and 202,428.51

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Solution

The fourth proportional to 518,193.03, 777,289.55 and 202,428.51 is: 303,642.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,193.03 : 777,289.55 = 202,428.51 : x
  2. Step 2: Convert to fraction form
    518,193.03/777,289.55 = 202,428.51/x
  3. Step 3: Cross multiply
    518,193.03x = 777,289.55 × 202,428.51
  4. Step 4: Simplify right side
    518,193.03x = 157,345,564,432.93
  5. Step 5: Solve for x
    x = 157,345,564,432.93/518,193.03
  6. Step 6: Final answer
    x = 303,642.77

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.