Home / 621,492,432.69-857,531,526.46-357,123,349.72

Finding the Fourth Proportional to 621,492,432.69, 857,531,526.46 and 357,123,349.72

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Solution

The fourth proportional to 621,492,432.69, 857,531,526.46 and 357,123,349.72 is: 492,756,653.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,492,432.69 : 857,531,526.46 = 357,123,349.72 : x
  2. Step 2: Convert to fraction form
    621,492,432.69/857,531,526.46 = 357,123,349.72/x
  3. Step 3: Cross multiply
    621,492,432.69x = 857,531,526.46 × 357,123,349.72
  4. Step 4: Simplify right side
    621,492,432.69x = 306,244,531,216,863,360
  5. Step 5: Solve for x
    x = 306,244,531,216,863,360/621,492,432.69
  6. Step 6: Final answer
    x = 492,756,653.35

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Double scale
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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.