Home / 859,154.40-1,287,565.20-609,544.80

Finding the Fourth Proportional to 859,154.40, 1,287,565.20 and 609,544.80

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Solution

The fourth proportional to 859,154.40, 1,287,565.20 and 609,544.80 is: 913,489.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,154.40 : 1,287,565.20 = 609,544.80 : x
  2. Step 2: Convert to fraction form
    859,154.40/1,287,565.20 = 609,544.80/x
  3. Step 3: Cross multiply
    859,154.40x = 1,287,565.20 × 609,544.80
  4. Step 4: Simplify right side
    859,154.40x = 784,828,672,320.96
  5. Step 5: Solve for x
    x = 784,828,672,320.96/859,154.40
  6. Step 6: Final answer
    x = 913,489.67

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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.