Home / 935,280.41-1,290,686.40-505,560.56

Finding the Fourth Proportional to 935,280.41, 1,290,686.40 and 505,560.56

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Solution

The fourth proportional to 935,280.41, 1,290,686.40 and 505,560.56 is: 697,673.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,280.41 : 1,290,686.40 = 505,560.56 : x
  2. Step 2: Convert to fraction form
    935,280.41/1,290,686.40 = 505,560.56/x
  3. Step 3: Cross multiply
    935,280.41x = 1,290,686.40 × 505,560.56
  4. Step 4: Simplify right side
    935,280.41x = 652,520,132,714.95
  5. Step 5: Solve for x
    x = 652,520,132,714.95/935,280.41
  6. Step 6: Final answer
    x = 697,673.26

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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.