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Finding the Fourth Proportional to 922,154.43, 1,272,570.65 and 514,256.74

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Solution

The fourth proportional to 922,154.43, 1,272,570.65 and 514,256.74 is: 709,672.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,154.43 : 1,272,570.65 = 514,256.74 : x
  2. Step 2: Convert to fraction form
    922,154.43/1,272,570.65 = 514,256.74/x
  3. Step 3: Cross multiply
    922,154.43x = 1,272,570.65 × 514,256.74
  4. Step 4: Simplify right side
    922,154.43x = 654,428,033,888.68
  5. Step 5: Solve for x
    x = 654,428,033,888.68/922,154.43
  6. Step 6: Final answer
    x = 709,672.93

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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.