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Finding the Fourth Proportional to 459,498.42, 634,071.08 and 255,549.74

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Solution

The fourth proportional to 459,498.42, 634,071.08 and 255,549.74 is: 352,638.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,498.42 : 634,071.08 = 255,549.74 : x
  2. Step 2: Convert to fraction form
    459,498.42/634,071.08 = 255,549.74/x
  3. Step 3: Cross multiply
    459,498.42x = 634,071.08 × 255,549.74
  4. Step 4: Simplify right side
    459,498.42x = 162,036,699,635.52
  5. Step 5: Solve for x
    x = 162,036,699,635.52/459,498.42
  6. Step 6: Final answer
    x = 352,638.21

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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.