Home / 778,764.40-1,166,303.40-528,089.20

Finding the Fourth Proportional to 778,764.40, 1,166,303.40 and 528,089.20

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Solution

The fourth proportional to 778,764.40, 1,166,303.40 and 528,089.20 is: 790,883.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,764.40 : 1,166,303.40 = 528,089.20 : x
  2. Step 2: Convert to fraction form
    778,764.40/1,166,303.40 = 528,089.20/x
  3. Step 3: Cross multiply
    778,764.40x = 1,166,303.40 × 528,089.20
  4. Step 4: Simplify right side
    778,764.40x = 615,912,229,463.28
  5. Step 5: Solve for x
    x = 615,912,229,463.28/778,764.40
  6. Step 6: Final answer
    x = 790,883.90

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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.