Home / 716,721.50-1,075,058.40-211,290.86

Finding the Fourth Proportional to 716,721.50, 1,075,058.40 and 211,290.86

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Solution

The fourth proportional to 716,721.50, 1,075,058.40 and 211,290.86 is: 316,929.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,721.50 : 1,075,058.40 = 211,290.86 : x
  2. Step 2: Convert to fraction form
    716,721.50/1,075,058.40 = 211,290.86/x
  3. Step 3: Cross multiply
    716,721.50x = 1,075,058.40 × 211,290.86
  4. Step 4: Simplify right side
    716,721.50x = 227,150,013,886.22
  5. Step 5: Solve for x
    x = 227,150,013,886.22/716,721.50
  6. Step 6: Final answer
    x = 316,929.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.