Home / 517,688.12-776,210.52-218,014.40

Finding the Fourth Proportional to 517,688.12, 776,210.52 and 218,014.40

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Solution

The fourth proportional to 517,688.12, 776,210.52 and 218,014.40 is: 326,886.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,688.12 : 776,210.52 = 218,014.40 : x
  2. Step 2: Convert to fraction form
    517,688.12/776,210.52 = 218,014.40/x
  3. Step 3: Cross multiply
    517,688.12x = 776,210.52 × 218,014.40
  4. Step 4: Simplify right side
    517,688.12x = 169,225,070,791.49
  5. Step 5: Solve for x
    x = 169,225,070,791.49/517,688.12
  6. Step 6: Final answer
    x = 326,886.14

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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.