Home / 778,754.90-1,166,289.15-528,079.70

Finding the Fourth Proportional to 778,754.90, 1,166,289.15 and 528,079.70

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Solution

The fourth proportional to 778,754.90, 1,166,289.15 and 528,079.70 is: 790,869.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,754.90 : 1,166,289.15 = 528,079.70 : x
  2. Step 2: Convert to fraction form
    778,754.90/1,166,289.15 = 528,079.70/x
  3. Step 3: Cross multiply
    778,754.90x = 1,166,289.15 × 528,079.70
  4. Step 4: Simplify right side
    778,754.90x = 615,893,624,445.26
  5. Step 5: Solve for x
    x = 615,893,624,445.26/778,754.90
  6. Step 6: Final answer
    x = 790,869.66

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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.