Home / 905,444.81-1,249,581.52-561,347.69

Finding the Fourth Proportional to 905,444.81, 1,249,581.52 and 561,347.69

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Solution

The fourth proportional to 905,444.81, 1,249,581.52 and 561,347.69 is: 774,701.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,444.81 : 1,249,581.52 = 561,347.69 : x
  2. Step 2: Convert to fraction form
    905,444.81/1,249,581.52 = 561,347.69/x
  3. Step 3: Cross multiply
    905,444.81x = 1,249,581.52 × 561,347.69
  4. Step 4: Simplify right side
    905,444.81x = 701,449,703,926.39
  5. Step 5: Solve for x
    x = 701,449,703,926.39/905,444.81
  6. Step 6: Final answer
    x = 774,701.78

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Double scale
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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.