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Finding the Fourth Proportional to 896,901.60, 1,343,019.60 and 579,640.80

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Solution

The fourth proportional to 896,901.60, 1,343,019.60 and 579,640.80 is: 867,953.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    896,901.60 : 1,343,019.60 = 579,640.80 : x
  2. Step 2: Convert to fraction form
    896,901.60/1,343,019.60 = 579,640.80/x
  3. Step 3: Cross multiply
    896,901.60x = 1,343,019.60 × 579,640.80
  4. Step 4: Simplify right side
    896,901.60x = 778,468,955,359.68
  5. Step 5: Solve for x
    x = 778,468,955,359.68/896,901.60
  6. Step 6: Final answer
    x = 867,953.58

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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.