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Finding the Fourth Proportional to 425,512.70, 637,612.95 and 369,088.10

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Solution

The fourth proportional to 425,512.70, 637,612.95 and 369,088.10 is: 553,063.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,512.70 : 637,612.95 = 369,088.10 : x
  2. Step 2: Convert to fraction form
    425,512.70/637,612.95 = 369,088.10/x
  3. Step 3: Cross multiply
    425,512.70x = 637,612.95 × 369,088.10
  4. Step 4: Simplify right side
    425,512.70x = 235,335,352,250.90
  5. Step 5: Solve for x
    x = 235,335,352,250.90/425,512.70
  6. Step 6: Final answer
    x = 553,063.05

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1.5x scale

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.