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Finding the Fourth Proportional to 526,521.40, 726,536.90 and 297,065.46

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Solution

The fourth proportional to 526,521.40, 726,536.90 and 297,065.46 is: 409,915.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,521.40 : 726,536.90 = 297,065.46 : x
  2. Step 2: Convert to fraction form
    526,521.40/726,536.90 = 297,065.46/x
  3. Step 3: Cross multiply
    526,521.40x = 726,536.90 × 297,065.46
  4. Step 4: Simplify right side
    526,521.40x = 215,829,018,405.47
  5. Step 5: Solve for x
    x = 215,829,018,405.47/526,521.40
  6. Step 6: Final answer
    x = 409,915.00

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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.