Home / 517,786,289.60-776,679,434.40-314,606,667.20

Finding the Fourth Proportional to 517,786,289.60, 776,679,434.40 and 314,606,667.20

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Solution

The fourth proportional to 517,786,289.60, 776,679,434.40 and 314,606,667.20 is: 471,910,000.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,786,289.60 : 776,679,434.40 = 314,606,667.20 : x
  2. Step 2: Convert to fraction form
    517,786,289.60/776,679,434.40 = 314,606,667.20/x
  3. Step 3: Cross multiply
    517,786,289.60x = 776,679,434.40 × 314,606,667.20
  4. Step 4: Simplify right side
    517,786,289.60x = 244,348,528,339,365,024
  5. Step 5: Solve for x
    x = 244,348,528,339,365,024/517,786,289.60
  6. Step 6: Final answer
    x = 471,910,000.80

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.