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Finding the Fourth Proportional to 810,875.82, 1,119,186.28 and 471,539.82

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Solution

The fourth proportional to 810,875.82, 1,119,186.28 and 471,539.82 is: 650,828.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,875.82 : 1,119,186.28 = 471,539.82 : x
  2. Step 2: Convert to fraction form
    810,875.82/1,119,186.28 = 471,539.82/x
  3. Step 3: Cross multiply
    810,875.82x = 1,119,186.28 × 471,539.82
  4. Step 4: Simplify right side
    810,875.82x = 527,740,897,017.67
  5. Step 5: Solve for x
    x = 527,740,897,017.67/810,875.82
  6. Step 6: Final answer
    x = 650,828.26

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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.