Home / 955,714.81-1,318,886.63-520,133.86

Finding the Fourth Proportional to 955,714.81, 1,318,886.63 and 520,133.86

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Solution

The fourth proportional to 955,714.81, 1,318,886.63 and 520,133.86 is: 717,784.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    955,714.81 : 1,318,886.63 = 520,133.86 : x
  2. Step 2: Convert to fraction form
    955,714.81/1,318,886.63 = 520,133.86/x
  3. Step 3: Cross multiply
    955,714.81x = 1,318,886.63 × 520,133.86
  4. Step 4: Simplify right side
    955,714.81x = 685,997,590,269.75
  5. Step 5: Solve for x
    x = 685,997,590,269.75/955,714.81
  6. Step 6: Final answer
    x = 717,784.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.