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Finding the Fourth Proportional to 672,448.16, 1,008,822 and 293,430.08

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Solution

The fourth proportional to 672,448.16, 1,008,822 and 293,430.08 is: 440,210.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,448.16 : 1,008,822 = 293,430.08 : x
  2. Step 2: Convert to fraction form
    672,448.16/1,008,822 = 293,430.08/x
  3. Step 3: Cross multiply
    672,448.16x = 1,008,822 × 293,430.08
  4. Step 4: Simplify right side
    672,448.16x = 296,018,720,165.76
  5. Step 5: Solve for x
    x = 296,018,720,165.76/672,448.16
  6. Step 6: Final answer
    x = 440,210.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.