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Finding the Fourth Proportional to 590,492,328.40, 885,738,492.60 and 437,437,320.40

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Solution

The fourth proportional to 590,492,328.40, 885,738,492.60 and 437,437,320.40 is: 656,155,980.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,492,328.40 : 885,738,492.60 = 437,437,320.40 : x
  2. Step 2: Convert to fraction form
    590,492,328.40/885,738,492.60 = 437,437,320.40/x
  3. Step 3: Cross multiply
    590,492,328.40x = 885,738,492.60 × 437,437,320.40
  4. Step 4: Simplify right side
    590,492,328.40x = 387,455,072,778,079,232
  5. Step 5: Solve for x
    x = 387,455,072,778,079,232/590,492,328.40
  6. Step 6: Final answer
    x = 656,155,980.60

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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.