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Finding the Fourth Proportional to 504,047.40, 756,071.10 and 435,618.60

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Solution

The fourth proportional to 504,047.40, 756,071.10 and 435,618.60 is: 653,427.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,047.40 : 756,071.10 = 435,618.60 : x
  2. Step 2: Convert to fraction form
    504,047.40/756,071.10 = 435,618.60/x
  3. Step 3: Cross multiply
    504,047.40x = 756,071.10 × 435,618.60
  4. Step 4: Simplify right side
    504,047.40x = 329,358,634,082.46
  5. Step 5: Solve for x
    x = 329,358,634,082.46/504,047.40
  6. Step 6: Final answer
    x = 653,427.90

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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.