Home / 319,189.12-440,461.20-175,941.76

Finding the Fourth Proportional to 319,189.12, 440,461.20 and 175,941.76

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Solution

The fourth proportional to 319,189.12, 440,461.20 and 175,941.76 is: 242,788.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,189.12 : 440,461.20 = 175,941.76 : x
  2. Step 2: Convert to fraction form
    319,189.12/440,461.20 = 175,941.76/x
  3. Step 3: Cross multiply
    319,189.12x = 440,461.20 × 175,941.76
  4. Step 4: Simplify right side
    319,189.12x = 77,495,518,739.71
  5. Step 5: Solve for x
    x = 77,495,518,739.71/319,189.12
  6. Step 6: Final answer
    x = 242,788.72

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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.