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Finding the Fourth Proportional to 922,648.20, 1,273,225.60 and 540,929.20

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Solution

The fourth proportional to 922,648.20, 1,273,225.60 and 540,929.20 is: 746,465.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,648.20 : 1,273,225.60 = 540,929.20 : x
  2. Step 2: Convert to fraction form
    922,648.20/1,273,225.60 = 540,929.20/x
  3. Step 3: Cross multiply
    922,648.20x = 1,273,225.60 × 540,929.20
  4. Step 4: Simplify right side
    922,648.20x = 688,724,905,227.52
  5. Step 5: Solve for x
    x = 688,724,905,227.52/922,648.20
  6. Step 6: Final answer
    x = 746,465.34

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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.