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Finding the Fourth Proportional to 716,656.32, 1,075,649.04 and 361,920.08

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Solution

The fourth proportional to 716,656.32, 1,075,649.04 and 361,920.08 is: 543,215.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,656.32 : 1,075,649.04 = 361,920.08 : x
  2. Step 2: Convert to fraction form
    716,656.32/1,075,649.04 = 361,920.08/x
  3. Step 3: Cross multiply
    716,656.32x = 1,075,649.04 × 361,920.08
  4. Step 4: Simplify right side
    716,656.32x = 389,298,986,608.72
  5. Step 5: Solve for x
    x = 389,298,986,608.72/716,656.32
  6. Step 6: Final answer
    x = 543,215.73

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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.