Home / 778,770.40-1,166,312.40-528,095.20

Finding the Fourth Proportional to 778,770.40, 1,166,312.40 and 528,095.20

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Solution

The fourth proportional to 778,770.40, 1,166,312.40 and 528,095.20 is: 790,892.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,770.40 : 1,166,312.40 = 528,095.20 : x
  2. Step 2: Convert to fraction form
    778,770.40/1,166,312.40 = 528,095.20/x
  3. Step 3: Cross multiply
    778,770.40x = 1,166,312.40 × 528,095.20
  4. Step 4: Simplify right side
    778,770.40x = 615,923,980,140.48
  5. Step 5: Solve for x
    x = 615,923,980,140.48/778,770.40
  6. Step 6: Final answer
    x = 790,892.90

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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.