Home / 657,409,623.40-986,114,435.10-317,670,999.40

Finding the Fourth Proportional to 657,409,623.40, 986,114,435.10 and 317,670,999.40

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Solution

The fourth proportional to 657,409,623.40, 986,114,435.10 and 317,670,999.40 is: 476,506,499.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,409,623.40 : 986,114,435.10 = 317,670,999.40 : x
  2. Step 2: Convert to fraction form
    657,409,623.40/986,114,435.10 = 317,670,999.40/x
  3. Step 3: Cross multiply
    657,409,623.40x = 986,114,435.10 × 317,670,999.40
  4. Step 4: Simplify right side
    657,409,623.40x = 313,259,958,120,983,424
  5. Step 5: Solve for x
    x = 313,259,958,120,983,424/657,409,623.40
  6. Step 6: Final answer
    x = 476,506,499.10

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Double scale
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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.