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Finding the Fourth Proportional to 306,430.80, 459,646.20 and 96,068.40

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Solution

The fourth proportional to 306,430.80, 459,646.20 and 96,068.40 is: 144,102.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,430.80 : 459,646.20 = 96,068.40 : x
  2. Step 2: Convert to fraction form
    306,430.80/459,646.20 = 96,068.40/x
  3. Step 3: Cross multiply
    306,430.80x = 459,646.20 × 96,068.40
  4. Step 4: Simplify right side
    306,430.80x = 44,157,475,000.08
  5. Step 5: Solve for x
    x = 44,157,475,000.08/306,430.80
  6. Step 6: Final answer
    x = 144,102.60

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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.