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Finding the Fourth Proportional to 700,612.88, 1,051,262.76 and 434,302.88

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Solution

The fourth proportional to 700,612.88, 1,051,262.76 and 434,302.88 is: 651,667.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,612.88 : 1,051,262.76 = 434,302.88 : x
  2. Step 2: Convert to fraction form
    700,612.88/1,051,262.76 = 434,302.88/x
  3. Step 3: Cross multiply
    700,612.88x = 1,051,262.76 × 434,302.88
  4. Step 4: Simplify right side
    700,612.88x = 456,566,444,304.75
  5. Step 5: Solve for x
    x = 456,566,444,304.75/700,612.88
  6. Step 6: Final answer
    x = 651,667.22

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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.