Home / 1,009,403.81-1,392,938.76-556,694.81

Finding the Fourth Proportional to 1,009,403.81, 1,392,938.76 and 556,694.81

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Solution

The fourth proportional to 1,009,403.81, 1,392,938.76 and 556,694.81 is: 768,217.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,009,403.81 : 1,392,938.76 = 556,694.81 : x
  2. Step 2: Convert to fraction form
    1,009,403.81/1,392,938.76 = 556,694.81/x
  3. Step 3: Cross multiply
    1,009,403.81x = 1,392,938.76 × 556,694.81
  4. Step 4: Simplify right side
    1,009,403.81x = 775,441,768,591.67
  5. Step 5: Solve for x
    x = 775,441,768,591.67/1,009,403.81
  6. Step 6: Final answer
    x = 768,217.60

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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.