Home / 855,000.30-1,281,852.45-434,577.90

Finding the Fourth Proportional to 855,000.30, 1,281,852.45 and 434,577.90

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Solution

The fourth proportional to 855,000.30, 1,281,852.45 and 434,577.90 is: 651,537.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,000.30 : 1,281,852.45 = 434,577.90 : x
  2. Step 2: Convert to fraction form
    855,000.30/1,281,852.45 = 434,577.90/x
  3. Step 3: Cross multiply
    855,000.30x = 1,281,852.45 × 434,577.90
  4. Step 4: Simplify right side
    855,000.30x = 557,064,745,830.86
  5. Step 5: Solve for x
    x = 557,064,745,830.86/855,000.30
  6. Step 6: Final answer
    x = 651,537.49

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Double scale
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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.