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Finding the Fourth Proportional to 571,856.90, 857,526.15 and 216,752.90

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Solution

The fourth proportional to 571,856.90, 857,526.15 and 216,752.90 is: 325,031.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,856.90 : 857,526.15 = 216,752.90 : x
  2. Step 2: Convert to fraction form
    571,856.90/857,526.15 = 216,752.90/x
  3. Step 3: Cross multiply
    571,856.90x = 857,526.15 × 216,752.90
  4. Step 4: Simplify right side
    571,856.90x = 185,871,279,838.34
  5. Step 5: Solve for x
    x = 185,871,279,838.34/571,856.90
  6. Step 6: Final answer
    x = 325,031.10

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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.