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Finding the Fourth Proportional to 566,133.55, 781,271.99 and 308,013.57

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Solution

The fourth proportional to 566,133.55, 781,271.99 and 308,013.57 is: 425,062.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,133.55 : 781,271.99 = 308,013.57 : x
  2. Step 2: Convert to fraction form
    566,133.55/781,271.99 = 308,013.57/x
  3. Step 3: Cross multiply
    566,133.55x = 781,271.99 × 308,013.57
  4. Step 4: Simplify right side
    566,133.55x = 240,642,376,170.61
  5. Step 5: Solve for x
    x = 240,642,376,170.61/566,133.55
  6. Step 6: Final answer
    x = 425,062.92

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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.