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Finding the Fourth Proportional to 926,693.60, 1,387,707.60 and 609,432.80

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Solution

The fourth proportional to 926,693.60, 1,387,707.60 and 609,432.80 is: 912,615.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,693.60 : 1,387,707.60 = 609,432.80 : x
  2. Step 2: Convert to fraction form
    926,693.60/1,387,707.60 = 609,432.80/x
  3. Step 3: Cross multiply
    926,693.60x = 1,387,707.60 × 609,432.80
  4. Step 4: Simplify right side
    926,693.60x = 845,714,528,249.28
  5. Step 5: Solve for x
    x = 845,714,528,249.28/926,693.60
  6. Step 6: Final answer
    x = 912,615.05

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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.