Home / 991,666.81-1,487,500.09-654,628.50

Finding the Fourth Proportional to 991,666.81, 1,487,500.09 and 654,628.50

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Solution

The fourth proportional to 991,666.81, 1,487,500.09 and 654,628.50 is: 981,942.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,666.81 : 1,487,500.09 = 654,628.50 : x
  2. Step 2: Convert to fraction form
    991,666.81/1,487,500.09 = 654,628.50/x
  3. Step 3: Cross multiply
    991,666.81x = 1,487,500.09 × 654,628.50
  4. Step 4: Simplify right side
    991,666.81x = 973,759,945,229.07
  5. Step 5: Solve for x
    x = 973,759,945,229.07/991,666.81
  6. Step 6: Final answer
    x = 981,942.66

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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.