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Finding the Fourth Proportional to 634,019.68, 875,228.52 and 404,877.16

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Solution

The fourth proportional to 634,019.68, 875,228.52 and 404,877.16 is: 558,910.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,019.68 : 875,228.52 = 404,877.16 : x
  2. Step 2: Convert to fraction form
    634,019.68/875,228.52 = 404,877.16/x
  3. Step 3: Cross multiply
    634,019.68x = 875,228.52 × 404,877.16
  4. Step 4: Simplify right side
    634,019.68x = 354,360,037,528.60
  5. Step 5: Solve for x
    x = 354,360,037,528.60/634,019.68
  6. Step 6: Final answer
    x = 558,910.15

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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.