Home / 778,707.40-1,166,217.90-528,032.20

Finding the Fourth Proportional to 778,707.40, 1,166,217.90 and 528,032.20

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Solution

The fourth proportional to 778,707.40, 1,166,217.90 and 528,032.20 is: 790,798.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,707.40 : 1,166,217.90 = 528,032.20 : x
  2. Step 2: Convert to fraction form
    778,707.40/1,166,217.90 = 528,032.20/x
  3. Step 3: Cross multiply
    778,707.40x = 1,166,217.90 × 528,032.20
  4. Step 4: Simplify right side
    778,707.40x = 615,800,603,416.38
  5. Step 5: Solve for x
    x = 615,800,603,416.38/778,707.40
  6. Step 6: Final answer
    x = 790,798.45

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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.