Home / 851,386.78-1,173,692.96-669,783.28

Finding the Fourth Proportional to 851,386.78, 1,173,692.96 and 669,783.28

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Solution

The fourth proportional to 851,386.78, 1,173,692.96 and 669,783.28 is: 923,340.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,386.78 : 1,173,692.96 = 669,783.28 : x
  2. Step 2: Convert to fraction form
    851,386.78/1,173,692.96 = 669,783.28/x
  3. Step 3: Cross multiply
    851,386.78x = 1,173,692.96 × 669,783.28
  4. Step 4: Simplify right side
    851,386.78x = 786,119,920,461.71
  5. Step 5: Solve for x
    x = 786,119,920,461.71/851,386.78
  6. Step 6: Final answer
    x = 923,340.53

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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.