Home / 910,365.80-1,365,548.70-436,807.40

Finding the Fourth Proportional to 910,365.80, 1,365,548.70 and 436,807.40

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Solution

The fourth proportional to 910,365.80, 1,365,548.70 and 436,807.40 is: 655,211.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,365.80 : 1,365,548.70 = 436,807.40 : x
  2. Step 2: Convert to fraction form
    910,365.80/1,365,548.70 = 436,807.40/x
  3. Step 3: Cross multiply
    910,365.80x = 1,365,548.70 × 436,807.40
  4. Step 4: Simplify right side
    910,365.80x = 596,481,777,220.38
  5. Step 5: Solve for x
    x = 596,481,777,220.38/910,365.80
  6. Step 6: Final answer
    x = 655,211.10

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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.