Home / 688,518.90-1,030,737.15-511,809.30

Finding the Fourth Proportional to 688,518.90, 1,030,737.15 and 511,809.30

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Solution

The fourth proportional to 688,518.90, 1,030,737.15 and 511,809.30 is: 766,196.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,518.90 : 1,030,737.15 = 511,809.30 : x
  2. Step 2: Convert to fraction form
    688,518.90/1,030,737.15 = 511,809.30/x
  3. Step 3: Cross multiply
    688,518.90x = 1,030,737.15 × 511,809.30
  4. Step 4: Simplify right side
    688,518.90x = 527,540,859,225.50
  5. Step 5: Solve for x
    x = 527,540,859,225.50/688,518.90
  6. Step 6: Final answer
    x = 766,196.63

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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.