Home / 912,605.36-1,259,363.67-525,407.94

Finding the Fourth Proportional to 912,605.36, 1,259,363.67 and 525,407.94

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Solution

The fourth proportional to 912,605.36, 1,259,363.67 and 525,407.94 is: 725,044.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,605.36 : 1,259,363.67 = 525,407.94 : x
  2. Step 2: Convert to fraction form
    912,605.36/1,259,363.67 = 525,407.94/x
  3. Step 3: Cross multiply
    912,605.36x = 1,259,363.67 × 525,407.94
  4. Step 4: Simplify right side
    912,605.36x = 661,679,675,042.33
  5. Step 5: Solve for x
    x = 661,679,675,042.33/912,605.36
  6. Step 6: Final answer
    x = 725,044.70

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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.