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Finding the Fourth Proportional to 922,746.60, 1,382,564.70 and 448,410.60

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Solution

The fourth proportional to 922,746.60, 1,382,564.70 and 448,410.60 is: 671,860.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,746.60 : 1,382,564.70 = 448,410.60 : x
  2. Step 2: Convert to fraction form
    922,746.60/1,382,564.70 = 448,410.60/x
  3. Step 3: Cross multiply
    922,746.60x = 1,382,564.70 × 448,410.60
  4. Step 4: Simplify right side
    922,746.60x = 619,956,666,665.82
  5. Step 5: Solve for x
    x = 619,956,666,665.82/922,746.60
  6. Step 6: Final answer
    x = 671,860.15

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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.