Home / 935,165.62-1,290,528-505,445.77

Finding the Fourth Proportional to 935,165.62, 1,290,528 and 505,445.77

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Solution

The fourth proportional to 935,165.62, 1,290,528 and 505,445.77 is: 697,514.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,165.62 : 1,290,528 = 505,445.77 : x
  2. Step 2: Convert to fraction form
    935,165.62/1,290,528 = 505,445.77/x
  3. Step 3: Cross multiply
    935,165.62x = 1,290,528 × 505,445.77
  4. Step 4: Simplify right side
    935,165.62x = 652,291,918,666.56
  5. Step 5: Solve for x
    x = 652,291,918,666.56/935,165.62
  6. Step 6: Final answer
    x = 697,514.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.