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Finding the Fourth Proportional to 583,372.40, 875,404.20 and 425,202.80

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Solution

The fourth proportional to 583,372.40, 875,404.20 and 425,202.80 is: 638,056.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,372.40 : 875,404.20 = 425,202.80 : x
  2. Step 2: Convert to fraction form
    583,372.40/875,404.20 = 425,202.80/x
  3. Step 3: Cross multiply
    583,372.40x = 875,404.20 × 425,202.80
  4. Step 4: Simplify right side
    583,372.40x = 372,224,316,971.76
  5. Step 5: Solve for x
    x = 372,224,316,971.76/583,372.40
  6. Step 6: Final answer
    x = 638,056.10

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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.