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Finding the Fourth Proportional to 690,439,730.88, 953,033,892.48 and 549,569,352

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Solution

The fourth proportional to 690,439,730.88, 953,033,892.48 and 549,569,352 is: 758,586,441.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,439,730.88 : 953,033,892.48 = 549,569,352 : x
  2. Step 2: Convert to fraction form
    690,439,730.88/953,033,892.48 = 549,569,352/x
  3. Step 3: Cross multiply
    690,439,730.88x = 953,033,892.48 × 549,569,352
  4. Step 4: Simplify right side
    690,439,730.88x = 523,758,218,724,271,296
  5. Step 5: Solve for x
    x = 523,758,218,724,271,296/690,439,730.88
  6. Step 6: Final answer
    x = 758,586,441.80

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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.