Home / 929,561.80-1,282,502.88-521,603.68

Finding the Fourth Proportional to 929,561.80, 1,282,502.88 and 521,603.68

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Solution

The fourth proportional to 929,561.80, 1,282,502.88 and 521,603.68 is: 719,649.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,561.80 : 1,282,502.88 = 521,603.68 : x
  2. Step 2: Convert to fraction form
    929,561.80/1,282,502.88 = 521,603.68/x
  3. Step 3: Cross multiply
    929,561.80x = 1,282,502.88 × 521,603.68
  4. Step 4: Simplify right side
    929,561.80x = 668,958,221,818.60
  5. Step 5: Solve for x
    x = 668,958,221,818.60/929,561.80
  6. Step 6: Final answer
    x = 719,649.00

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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.