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Finding the Fourth Proportional to 750,987.46, 1,036,365 and 406,826.92

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Solution

The fourth proportional to 750,987.46, 1,036,365 and 406,826.92 is: 561,422.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,987.46 : 1,036,365 = 406,826.92 : x
  2. Step 2: Convert to fraction form
    750,987.46/1,036,365 = 406,826.92/x
  3. Step 3: Cross multiply
    750,987.46x = 1,036,365 × 406,826.92
  4. Step 4: Simplify right side
    750,987.46x = 421,621,180,945.80
  5. Step 5: Solve for x
    x = 421,621,180,945.80/750,987.46
  6. Step 6: Final answer
    x = 561,422.40

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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.