Home / 518,637.03-777,955.68-163,678.83

Finding the Fourth Proportional to 518,637.03, 777,955.68 and 163,678.83

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Solution

The fourth proportional to 518,637.03, 777,955.68 and 163,678.83 is: 245,518.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,637.03 : 777,955.68 = 163,678.83 : x
  2. Step 2: Convert to fraction form
    518,637.03/777,955.68 = 163,678.83/x
  3. Step 3: Cross multiply
    518,637.03x = 777,955.68 × 163,678.83
  4. Step 4: Simplify right side
    518,637.03x = 127,334,875,494.25
  5. Step 5: Solve for x
    x = 127,334,875,494.25/518,637.03
  6. Step 6: Final answer
    x = 245,518.29

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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.