Home / 669,825,492.11-924,359,945.45-372,461,349.76

Finding the Fourth Proportional to 669,825,492.11, 924,359,945.45 and 372,461,349.76

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Solution

The fourth proportional to 669,825,492.11, 924,359,945.45 and 372,461,349.76 is: 513,997,088.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,825,492.11 : 924,359,945.45 = 372,461,349.76 : x
  2. Step 2: Convert to fraction form
    669,825,492.11/924,359,945.45 = 372,461,349.76/x
  3. Step 3: Cross multiply
    669,825,492.11x = 924,359,945.45 × 372,461,349.76
  4. Step 4: Simplify right side
    669,825,492.11x = 344,288,352,942,213,760
  5. Step 5: Solve for x
    x = 344,288,352,942,213,760/669,825,492.11
  6. Step 6: Final answer
    x = 513,997,088.79

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Double scale
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1.5x scale

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.