Home / 826,862.09-1,138,430.16-705,516.39

Finding the Fourth Proportional to 826,862.09, 1,138,430.16 and 705,516.39

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Solution

The fourth proportional to 826,862.09, 1,138,430.16 and 705,516.39 is: 971,360.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,862.09 : 1,138,430.16 = 705,516.39 : x
  2. Step 2: Convert to fraction form
    826,862.09/1,138,430.16 = 705,516.39/x
  3. Step 3: Cross multiply
    826,862.09x = 1,138,430.16 × 705,516.39
  4. Step 4: Simplify right side
    826,862.09x = 803,181,136,750.32
  5. Step 5: Solve for x
    x = 803,181,136,750.32/826,862.09
  6. Step 6: Final answer
    x = 971,360.46

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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.