Home / 311,763.04-430,206.96-175,830.40

Finding the Fourth Proportional to 311,763.04, 430,206.96 and 175,830.40

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Solution

The fourth proportional to 311,763.04, 430,206.96 and 175,830.40 is: 242,631.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,763.04 : 430,206.96 = 175,830.40 : x
  2. Step 2: Convert to fraction form
    311,763.04/430,206.96 = 175,830.40/x
  3. Step 3: Cross multiply
    311,763.04x = 430,206.96 × 175,830.40
  4. Step 4: Simplify right side
    311,763.04x = 75,643,461,859.58
  5. Step 5: Solve for x
    x = 75,643,461,859.58/311,763.04
  6. Step 6: Final answer
    x = 242,631.27

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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.