Home / 866,000.13-1,195,061.48-478,800.67

Finding the Fourth Proportional to 866,000.13, 1,195,061.48 and 478,800.67

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Solution

The fourth proportional to 866,000.13, 1,195,061.48 and 478,800.67 is: 660,734.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,000.13 : 1,195,061.48 = 478,800.67 : x
  2. Step 2: Convert to fraction form
    866,000.13/1,195,061.48 = 478,800.67/x
  3. Step 3: Cross multiply
    866,000.13x = 1,195,061.48 × 478,800.67
  4. Step 4: Simplify right side
    866,000.13x = 572,196,228,945.88
  5. Step 5: Solve for x
    x = 572,196,228,945.88/866,000.13
  6. Step 6: Final answer
    x = 660,734.58

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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.