Home / 996,856.90-1,495,139.55-286,810.90

Finding the Fourth Proportional to 996,856.90, 1,495,139.55 and 286,810.90

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Solution

The fourth proportional to 996,856.90, 1,495,139.55 and 286,810.90 is: 430,174.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    996,856.90 : 1,495,139.55 = 286,810.90 : x
  2. Step 2: Convert to fraction form
    996,856.90/1,495,139.55 = 286,810.90/x
  3. Step 3: Cross multiply
    996,856.90x = 1,495,139.55 × 286,810.90
  4. Step 4: Simplify right side
    996,856.90x = 428,822,319,961.10
  5. Step 5: Solve for x
    x = 428,822,319,961.10/996,856.90
  6. Step 6: Final answer
    x = 430,174.40

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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.