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Finding the Fourth Proportional to 968,803,390.40, 1,453,205,085.60 and 968,803,390.40

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Solution

The fourth proportional to 968,803,390.40, 1,453,205,085.60 and 968,803,390.40 is: 1,453,205,085.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    968,803,390.40 : 1,453,205,085.60 = 968,803,390.40 : x
  2. Step 2: Convert to fraction form
    968,803,390.40/1,453,205,085.60 = 968,803,390.40/x
  3. Step 3: Cross multiply
    968,803,390.40x = 1,453,205,085.60 × 968,803,390.40
  4. Step 4: Simplify right side
    968,803,390.40x = 1,407,870,013,875,802,112
  5. Step 5: Solve for x
    x = 1,407,870,013,875,802,112/968,803,390.40
  6. Step 6: Final answer
    x = 1,453,205,085.60

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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.