Home / 705,977.84-974,249.44-383,688.72

Finding the Fourth Proportional to 705,977.84, 974,249.44 and 383,688.72

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Solution

The fourth proportional to 705,977.84, 974,249.44 and 383,688.72 is: 529,490.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,977.84 : 974,249.44 = 383,688.72 : x
  2. Step 2: Convert to fraction form
    705,977.84/974,249.44 = 383,688.72/x
  3. Step 3: Cross multiply
    705,977.84x = 974,249.44 × 383,688.72
  4. Step 4: Simplify right side
    705,977.84x = 373,808,520,594.32
  5. Step 5: Solve for x
    x = 373,808,520,594.32/705,977.84
  6. Step 6: Final answer
    x = 529,490.44

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Double scale
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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.