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Finding the Fourth Proportional to 553,392.99, 830,010.57 and 174,303.89

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Solution

The fourth proportional to 553,392.99, 830,010.57 and 174,303.89 is: 261,430.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,392.99 : 830,010.57 = 174,303.89 : x
  2. Step 2: Convert to fraction form
    553,392.99/830,010.57 = 174,303.89/x
  3. Step 3: Cross multiply
    553,392.99x = 830,010.57 × 174,303.89
  4. Step 4: Simplify right side
    553,392.99x = 144,674,066,942.06
  5. Step 5: Solve for x
    x = 144,674,066,942.06/553,392.99
  6. Step 6: Final answer
    x = 261,430.97

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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.