Home / 896,814,644.42-1,237,604,979.81-500,337,695.48

Finding the Fourth Proportional to 896,814,644.42, 1,237,604,979.81 and 500,337,695.48

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Solution

The fourth proportional to 896,814,644.42, 1,237,604,979.81 and 500,337,695.48 is: 690,466,449.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    896,814,644.42 : 1,237,604,979.81 = 500,337,695.48 : x
  2. Step 2: Convert to fraction form
    896,814,644.42/1,237,604,979.81 = 500,337,695.48/x
  3. Step 3: Cross multiply
    896,814,644.42x = 1,237,604,979.81 × 500,337,695.48
  4. Step 4: Simplify right side
    896,814,644.42x = 619,220,423,506,519,296
  5. Step 5: Solve for x
    x = 619,220,423,506,519,296/896,814,644.42
  6. Step 6: Final answer
    x = 690,466,449.63

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Double scale
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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.