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Finding the Fourth Proportional to 922,175.76, 1,272,600.05 and 514,278.05

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Solution

The fourth proportional to 922,175.76, 1,272,600.05 and 514,278.05 is: 709,702.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,175.76 : 1,272,600.05 = 514,278.05 : x
  2. Step 2: Convert to fraction form
    922,175.76/1,272,600.05 = 514,278.05/x
  3. Step 3: Cross multiply
    922,175.76x = 1,272,600.05 × 514,278.05
  4. Step 4: Simplify right side
    922,175.76x = 654,470,263,209.51
  5. Step 5: Solve for x
    x = 654,470,263,209.51/922,175.76
  6. Step 6: Final answer
    x = 709,702.30

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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.