Home / 312,041.07-430,615.38-168,800.76

Finding the Fourth Proportional to 312,041.07, 430,615.38 and 168,800.76

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Solution

The fourth proportional to 312,041.07, 430,615.38 and 168,800.76 is: 232,944.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,041.07 : 430,615.38 = 168,800.76 : x
  2. Step 2: Convert to fraction form
    312,041.07/430,615.38 = 168,800.76/x
  3. Step 3: Cross multiply
    312,041.07x = 430,615.38 × 168,800.76
  4. Step 4: Simplify right side
    312,041.07x = 72,688,203,411.69
  5. Step 5: Solve for x
    x = 72,688,203,411.69/312,041.07
  6. Step 6: Final answer
    x = 232,944.35

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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.