Home / 664,056.23-916,440.90-377,602.97

Finding the Fourth Proportional to 664,056.23, 916,440.90 and 377,602.97

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Solution

The fourth proportional to 664,056.23, 916,440.90 and 377,602.97 is: 521,116.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,056.23 : 916,440.90 = 377,602.97 : x
  2. Step 2: Convert to fraction form
    664,056.23/916,440.90 = 377,602.97/x
  3. Step 3: Cross multiply
    664,056.23x = 916,440.90 × 377,602.97
  4. Step 4: Simplify right side
    664,056.23x = 346,050,805,669.47
  5. Step 5: Solve for x
    x = 346,050,805,669.47/664,056.23
  6. Step 6: Final answer
    x = 521,116.72

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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.