Home / 919,656.90-1,379,543.66-288,595.62

Finding the Fourth Proportional to 919,656.90, 1,379,543.66 and 288,595.62

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Solution

The fourth proportional to 919,656.90, 1,379,543.66 and 288,595.62 is: 432,911.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,656.90 : 1,379,543.66 = 288,595.62 : x
  2. Step 2: Convert to fraction form
    919,656.90/1,379,543.66 = 288,595.62/x
  3. Step 3: Cross multiply
    919,656.90x = 1,379,543.66 × 288,595.62
  4. Step 4: Simplify right side
    919,656.90x = 398,130,257,874.77
  5. Step 5: Solve for x
    x = 398,130,257,874.77/919,656.90
  6. Step 6: Final answer
    x = 432,911.73

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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.