Home / 289,833.20-434,547.30-171,443.60

Finding the Fourth Proportional to 289,833.20, 434,547.30 and 171,443.60

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Solution

The fourth proportional to 289,833.20, 434,547.30 and 171,443.60 is: 257,045.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,833.20 : 434,547.30 = 171,443.60 : x
  2. Step 2: Convert to fraction form
    289,833.20/434,547.30 = 171,443.60/x
  3. Step 3: Cross multiply
    289,833.20x = 434,547.30 × 171,443.60
  4. Step 4: Simplify right side
    289,833.20x = 74,500,353,482.28
  5. Step 5: Solve for x
    x = 74,500,353,482.28/289,833.20
  6. Step 6: Final answer
    x = 257,045.62

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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.