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Finding the Fourth Proportional to 760,577.20, 1,049,609 and 416,407.40

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Solution

The fourth proportional to 760,577.20, 1,049,609 and 416,407.40 is: 574,649.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,577.20 : 1,049,609 = 416,407.40 : x
  2. Step 2: Convert to fraction form
    760,577.20/1,049,609 = 416,407.40/x
  3. Step 3: Cross multiply
    760,577.20x = 1,049,609 × 416,407.40
  4. Step 4: Simplify right side
    760,577.20x = 437,064,954,706.60
  5. Step 5: Solve for x
    x = 437,064,954,706.60/760,577.20
  6. Step 6: Final answer
    x = 574,649.04

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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.