Home / 634,914.60-876,221.48-419,681.40

Finding the Fourth Proportional to 634,914.60, 876,221.48 and 419,681.40

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Solution

The fourth proportional to 634,914.60, 876,221.48 and 419,681.40 is: 579,186.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,914.60 : 876,221.48 = 419,681.40 : x
  2. Step 2: Convert to fraction form
    634,914.60/876,221.48 = 419,681.40/x
  3. Step 3: Cross multiply
    634,914.60x = 876,221.48 × 419,681.40
  4. Step 4: Simplify right side
    634,914.60x = 367,733,857,436.47
  5. Step 5: Solve for x
    x = 367,733,857,436.47/634,914.60
  6. Step 6: Final answer
    x = 579,186.33

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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.