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Finding the Fourth Proportional to 459,070.40, 688,605.60 and 354,094.40

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Solution

The fourth proportional to 459,070.40, 688,605.60 and 354,094.40 is: 531,141.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,070.40 : 688,605.60 = 354,094.40 : x
  2. Step 2: Convert to fraction form
    459,070.40/688,605.60 = 354,094.40/x
  3. Step 3: Cross multiply
    459,070.40x = 688,605.60 × 354,094.40
  4. Step 4: Simplify right side
    459,070.40x = 243,831,386,768.64
  5. Step 5: Solve for x
    x = 243,831,386,768.64/459,070.40
  6. Step 6: Final answer
    x = 531,141.60

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Similar ratio
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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.