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Finding the Fourth Proportional to 673,510.40, 929,564.76 and 401,595.80

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Solution

The fourth proportional to 673,510.40, 929,564.76 and 401,595.80 is: 554,274.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,510.40 : 929,564.76 = 401,595.80 : x
  2. Step 2: Convert to fraction form
    673,510.40/929,564.76 = 401,595.80/x
  3. Step 3: Cross multiply
    673,510.40x = 929,564.76 × 401,595.80
  4. Step 4: Simplify right side
    673,510.40x = 373,309,303,444.01
  5. Step 5: Solve for x
    x = 373,309,303,444.01/673,510.40
  6. Step 6: Final answer
    x = 554,274.00

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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.