Home / 911,533.18-1,257,908.40-503,633.74

Finding the Fourth Proportional to 911,533.18, 1,257,908.40 and 503,633.74

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Solution

The fourth proportional to 911,533.18, 1,257,908.40 and 503,633.74 is: 695,010.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,533.18 : 1,257,908.40 = 503,633.74 : x
  2. Step 2: Convert to fraction form
    911,533.18/1,257,908.40 = 503,633.74/x
  3. Step 3: Cross multiply
    911,533.18x = 1,257,908.40 × 503,633.74
  4. Step 4: Simplify right side
    911,533.18x = 633,525,112,069.42
  5. Step 5: Solve for x
    x = 633,525,112,069.42/911,533.18
  6. Step 6: Final answer
    x = 695,010.48

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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.