Home / 513,316.20-769,901.40-176,372.40

Finding the Fourth Proportional to 513,316.20, 769,901.40 and 176,372.40

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Solution

The fourth proportional to 513,316.20, 769,901.40 and 176,372.40 is: 264,533.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,316.20 : 769,901.40 = 176,372.40 : x
  2. Step 2: Convert to fraction form
    513,316.20/769,901.40 = 176,372.40/x
  3. Step 3: Cross multiply
    513,316.20x = 769,901.40 × 176,372.40
  4. Step 4: Simplify right side
    513,316.20x = 135,789,357,681.36
  5. Step 5: Solve for x
    x = 135,789,357,681.36/513,316.20
  6. Step 6: Final answer
    x = 264,533.55

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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.