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Finding the Fourth Proportional to 583,266.40, 818,784.80 and 583,266.40

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Solution

The fourth proportional to 583,266.40, 818,784.80 and 583,266.40 is: 818,784.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,266.40 : 818,784.80 = 583,266.40 : x
  2. Step 2: Convert to fraction form
    583,266.40/818,784.80 = 583,266.40/x
  3. Step 3: Cross multiply
    583,266.40x = 818,784.80 × 583,266.40
  4. Step 4: Simplify right side
    583,266.40x = 477,569,662,670.72
  5. Step 5: Solve for x
    x = 477,569,662,670.72/583,266.40
  6. Step 6: Final answer
    x = 818,784.80

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.