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Finding the Fourth Proportional to 459,987.93, 634,790.53 and 256,041.07

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Solution

The fourth proportional to 459,987.93, 634,790.53 and 256,041.07 is: 353,340.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,987.93 : 634,790.53 = 256,041.07 : x
  2. Step 2: Convert to fraction form
    459,987.93/634,790.53 = 256,041.07/x
  3. Step 3: Cross multiply
    459,987.93x = 634,790.53 × 256,041.07
  4. Step 4: Simplify right side
    459,987.93x = 162,532,446,527.07
  5. Step 5: Solve for x
    x = 162,532,446,527.07/459,987.93
  6. Step 6: Final answer
    x = 353,340.68

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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.