Home / 778,712.90-1,166,226.15-528,037.70

Finding the Fourth Proportional to 778,712.90, 1,166,226.15 and 528,037.70

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Solution

The fourth proportional to 778,712.90, 1,166,226.15 and 528,037.70 is: 790,806.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,712.90 : 1,166,226.15 = 528,037.70 : x
  2. Step 2: Convert to fraction form
    778,712.90/1,166,226.15 = 528,037.70/x
  3. Step 3: Cross multiply
    778,712.90x = 1,166,226.15 × 528,037.70
  4. Step 4: Simplify right side
    778,712.90x = 615,811,373,925.86
  5. Step 5: Solve for x
    x = 615,811,373,925.86/778,712.90
  6. Step 6: Final answer
    x = 790,806.69

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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.