Home / 453,125.40-679,688.10-383,141.40

Finding the Fourth Proportional to 453,125.40, 679,688.10 and 383,141.40

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Solution

The fourth proportional to 453,125.40, 679,688.10 and 383,141.40 is: 574,712.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,125.40 : 679,688.10 = 383,141.40 : x
  2. Step 2: Convert to fraction form
    453,125.40/679,688.10 = 383,141.40/x
  3. Step 3: Cross multiply
    453,125.40x = 679,688.10 × 383,141.40
  4. Step 4: Simplify right side
    453,125.40x = 260,416,650,197.34
  5. Step 5: Solve for x
    x = 260,416,650,197.34/453,125.40
  6. Step 6: Final answer
    x = 574,712.10

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Double scale
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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.