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Finding the Fourth Proportional to 911,570.71, 1,258,041.24 and 503,708.32

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Solution

The fourth proportional to 911,570.71, 1,258,041.24 and 503,708.32 is: 695,158.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,570.71 : 1,258,041.24 = 503,708.32 : x
  2. Step 2: Convert to fraction form
    911,570.71/1,258,041.24 = 503,708.32/x
  3. Step 3: Cross multiply
    911,570.71x = 1,258,041.24 × 503,708.32
  4. Step 4: Simplify right side
    911,570.71x = 633,685,839,491.12
  5. Step 5: Solve for x
    x = 633,685,839,491.12/911,570.71
  6. Step 6: Final answer
    x = 695,158.18

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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.