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Finding the Fourth Proportional to 705,981.61, 974,261.01 and 383,692.47

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Solution

The fourth proportional to 705,981.61, 974,261.01 and 383,692.47 is: 529,499.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,981.61 : 974,261.01 = 383,692.47 : x
  2. Step 2: Convert to fraction form
    705,981.61/974,261.01 = 383,692.47/x
  3. Step 3: Cross multiply
    705,981.61x = 974,261.01 × 383,692.47
  4. Step 4: Simplify right side
    705,981.61x = 373,816,613,351.60
  5. Step 5: Solve for x
    x = 373,816,613,351.60/705,981.61
  6. Step 6: Final answer
    x = 529,499.08

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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.