Home / 905,261.13-1,248,740.70-565,138.89

Finding the Fourth Proportional to 905,261.13, 1,248,740.70 and 565,138.89

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Solution

The fourth proportional to 905,261.13, 1,248,740.70 and 565,138.89 is: 779,567.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,261.13 : 1,248,740.70 = 565,138.89 : x
  2. Step 2: Convert to fraction form
    905,261.13/1,248,740.70 = 565,138.89/x
  3. Step 3: Cross multiply
    905,261.13x = 1,248,740.70 × 565,138.89
  4. Step 4: Simplify right side
    905,261.13x = 705,711,933,095.82
  5. Step 5: Solve for x
    x = 705,711,933,095.82/905,261.13
  6. Step 6: Final answer
    x = 779,567.25

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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.