Home / 771,886.20-1,065,202.92-470,080.20

Finding the Fourth Proportional to 771,886.20, 1,065,202.92 and 470,080.20

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Solution

The fourth proportional to 771,886.20, 1,065,202.92 and 470,080.20 is: 648,710.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,886.20 : 1,065,202.92 = 470,080.20 : x
  2. Step 2: Convert to fraction form
    771,886.20/1,065,202.92 = 470,080.20/x
  3. Step 3: Cross multiply
    771,886.20x = 1,065,202.92 × 470,080.20
  4. Step 4: Simplify right side
    771,886.20x = 500,730,801,674.18
  5. Step 5: Solve for x
    x = 500,730,801,674.18/771,886.20
  6. Step 6: Final answer
    x = 648,710.65

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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.