Home / 459,117.40-688,676.10-410,128.60

Finding the Fourth Proportional to 459,117.40, 688,676.10 and 410,128.60

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Solution

The fourth proportional to 459,117.40, 688,676.10 and 410,128.60 is: 615,192.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,117.40 : 688,676.10 = 410,128.60 : x
  2. Step 2: Convert to fraction form
    459,117.40/688,676.10 = 410,128.60/x
  3. Step 3: Cross multiply
    459,117.40x = 688,676.10 × 410,128.60
  4. Step 4: Simplify right side
    459,117.40x = 282,445,764,746.46
  5. Step 5: Solve for x
    x = 282,445,764,746.46/459,117.40
  6. Step 6: Final answer
    x = 615,192.90

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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.