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Finding the Fourth Proportional to 402,941,803.60, 604,412,705.40 and 370,693,176.40

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Solution

The fourth proportional to 402,941,803.60, 604,412,705.40 and 370,693,176.40 is: 556,039,764.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,941,803.60 : 604,412,705.40 = 370,693,176.40 : x
  2. Step 2: Convert to fraction form
    402,941,803.60/604,412,705.40 = 370,693,176.40/x
  3. Step 3: Cross multiply
    402,941,803.60x = 604,412,705.40 × 370,693,176.40
  4. Step 4: Simplify right side
    402,941,803.60x = 224,051,665,621,243,424
  5. Step 5: Solve for x
    x = 224,051,665,621,243,424/402,941,803.60
  6. Step 6: Final answer
    x = 556,039,764.60

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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.