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Finding the Fourth Proportional to 887,679,920.16, 1,223,995,827.60 and 663,944,585.94

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Solution

The fourth proportional to 887,679,920.16, 1,223,995,827.60 and 663,944,585.94 is: 915,493,732.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,679,920.16 : 1,223,995,827.60 = 663,944,585.94 : x
  2. Step 2: Convert to fraction form
    887,679,920.16/1,223,995,827.60 = 663,944,585.94/x
  3. Step 3: Cross multiply
    887,679,920.16x = 1,223,995,827.60 × 663,944,585.94
  4. Step 4: Simplify right side
    887,679,920.16x = 812,665,402,948,169,600
  5. Step 5: Solve for x
    x = 812,665,402,948,169,600/887,679,920.16
  6. Step 6: Final answer
    x = 915,493,732.02

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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.