Home / 921,921.16-1,271,798.92-616,072.64

Finding the Fourth Proportional to 921,921.16, 1,271,798.92 and 616,072.64

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Solution

The fourth proportional to 921,921.16, 1,271,798.92 and 616,072.64 is: 849,878.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,921.16 : 1,271,798.92 = 616,072.64 : x
  2. Step 2: Convert to fraction form
    921,921.16/1,271,798.92 = 616,072.64/x
  3. Step 3: Cross multiply
    921,921.16x = 1,271,798.92 × 616,072.64
  4. Step 4: Simplify right side
    921,921.16x = 783,520,518,193.55
  5. Step 5: Solve for x
    x = 783,520,518,193.55/921,921.16
  6. Step 6: Final answer
    x = 849,878.01

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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.