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Finding the Fourth Proportional to 875,806,558.38, 1,208,616,252.57 and 473,920,309.22

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Solution

The fourth proportional to 875,806,558.38, 1,208,616,252.57 and 473,920,309.22 is: 654,011,759.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,806,558.38 : 1,208,616,252.57 = 473,920,309.22 : x
  2. Step 2: Convert to fraction form
    875,806,558.38/1,208,616,252.57 = 473,920,309.22/x
  3. Step 3: Cross multiply
    875,806,558.38x = 1,208,616,252.57 × 473,920,309.22
  4. Step 4: Simplify right side
    875,806,558.38x = 572,787,788,140,248,896
  5. Step 5: Solve for x
    x = 572,787,788,140,248,896/875,806,558.38
  6. Step 6: Final answer
    x = 654,011,759.40

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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.