Home / 289,026.90-434,577.15-243,407.70

Finding the Fourth Proportional to 289,026.90, 434,577.15 and 243,407.70

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Solution

The fourth proportional to 289,026.90, 434,577.15 and 243,407.70 is: 365,984.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,026.90 : 434,577.15 = 243,407.70 : x
  2. Step 2: Convert to fraction form
    289,026.90/434,577.15 = 243,407.70/x
  3. Step 3: Cross multiply
    289,026.90x = 434,577.15 × 243,407.70
  4. Step 4: Simplify right side
    289,026.90x = 105,779,424,554.06
  5. Step 5: Solve for x
    x = 105,779,424,554.06/289,026.90
  6. Step 6: Final answer
    x = 365,984.70

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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.