Home / 530,849.40-794,330.10-390,881.40

Finding the Fourth Proportional to 530,849.40, 794,330.10 and 390,881.40

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Solution

The fourth proportional to 530,849.40, 794,330.10 and 390,881.40 is: 584,890.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,849.40 : 794,330.10 = 390,881.40 : x
  2. Step 2: Convert to fraction form
    530,849.40/794,330.10 = 390,881.40/x
  3. Step 3: Cross multiply
    530,849.40x = 794,330.10 × 390,881.40
  4. Step 4: Simplify right side
    530,849.40x = 310,488,861,550.14
  5. Step 5: Solve for x
    x = 310,488,861,550.14/530,849.40
  6. Step 6: Final answer
    x = 584,890.67

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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.