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Finding the Fourth Proportional to 761,633.92, 1,050,814.64 and 439,300.80

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Solution

The fourth proportional to 761,633.92, 1,050,814.64 and 439,300.80 is: 606,096.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,633.92 : 1,050,814.64 = 439,300.80 : x
  2. Step 2: Convert to fraction form
    761,633.92/1,050,814.64 = 439,300.80/x
  3. Step 3: Cross multiply
    761,633.92x = 1,050,814.64 × 439,300.80
  4. Step 4: Simplify right side
    761,633.92x = 461,623,712,003.71
  5. Step 5: Solve for x
    x = 461,623,712,003.71/761,633.92
  6. Step 6: Final answer
    x = 606,096.58

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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.