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Finding the Fourth Proportional to 750,710.76, 1,035,980.90 and 411,191.16

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Solution

The fourth proportional to 750,710.76, 1,035,980.90 and 411,191.16 is: 567,443.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,710.76 : 1,035,980.90 = 411,191.16 : x
  2. Step 2: Convert to fraction form
    750,710.76/1,035,980.90 = 411,191.16/x
  3. Step 3: Cross multiply
    750,710.76x = 1,035,980.90 × 411,191.16
  4. Step 4: Simplify right side
    750,710.76x = 425,986,188,008.84
  5. Step 5: Solve for x
    x = 425,986,188,008.84/750,710.76
  6. Step 6: Final answer
    x = 567,443.83

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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.