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Finding the Fourth Proportional to 688,813.35, 950,639.32 and 417,031.01

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Solution

The fourth proportional to 688,813.35, 950,639.32 and 417,031.01 is: 575,549.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,813.35 : 950,639.32 = 417,031.01 : x
  2. Step 2: Convert to fraction form
    688,813.35/950,639.32 = 417,031.01/x
  3. Step 3: Cross multiply
    688,813.35x = 950,639.32 × 417,031.01
  4. Step 4: Simplify right side
    688,813.35x = 396,446,078,099.85
  5. Step 5: Solve for x
    x = 396,446,078,099.85/688,813.35
  6. Step 6: Final answer
    x = 575,549.35

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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.