Home / 866,090.80-1,195,156.98-478,883.80

Finding the Fourth Proportional to 866,090.80, 1,195,156.98 and 478,883.80

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Solution

The fourth proportional to 866,090.80, 1,195,156.98 and 478,883.80 is: 660,832.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,090.80 : 1,195,156.98 = 478,883.80 : x
  2. Step 2: Convert to fraction form
    866,090.80/1,195,156.98 = 478,883.80/x
  3. Step 3: Cross multiply
    866,090.80x = 1,195,156.98 × 478,883.80
  4. Step 4: Simplify right side
    866,090.80x = 572,341,316,178.92
  5. Step 5: Solve for x
    x = 572,341,316,178.92/866,090.80
  6. Step 6: Final answer
    x = 660,832.92

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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.