Home / 648,451.02-894,877.53-406,743.78

Finding the Fourth Proportional to 648,451.02, 894,877.53 and 406,743.78

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Solution

The fourth proportional to 648,451.02, 894,877.53 and 406,743.78 is: 561,315.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,451.02 : 894,877.53 = 406,743.78 : x
  2. Step 2: Convert to fraction form
    648,451.02/894,877.53 = 406,743.78/x
  3. Step 3: Cross multiply
    648,451.02x = 894,877.53 × 406,743.78
  4. Step 4: Simplify right side
    648,451.02x = 363,985,869,189.26
  5. Step 5: Solve for x
    x = 363,985,869,189.26/648,451.02
  6. Step 6: Final answer
    x = 561,315.90

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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.