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Finding the Fourth Proportional to 692,915.50, 956,226.30 and 374,963.50

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Solution

The fourth proportional to 692,915.50, 956,226.30 and 374,963.50 is: 517,451.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,915.50 : 956,226.30 = 374,963.50 : x
  2. Step 2: Convert to fraction form
    692,915.50/956,226.30 = 374,963.50/x
  3. Step 3: Cross multiply
    692,915.50x = 956,226.30 × 374,963.50
  4. Step 4: Simplify right side
    692,915.50x = 358,549,960,240.05
  5. Step 5: Solve for x
    x = 358,549,960,240.05/692,915.50
  6. Step 6: Final answer
    x = 517,451.20

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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.