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Finding the Fourth Proportional to 1,706,962.40, 2,355,590.40 and 942,966.08

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Solution

The fourth proportional to 1,706,962.40, 2,355,590.40 and 942,966.08 is: 1,301,283.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,706,962.40 : 2,355,590.40 = 942,966.08 : x
  2. Step 2: Convert to fraction form
    1,706,962.40/2,355,590.40 = 942,966.08/x
  3. Step 3: Cross multiply
    1,706,962.40x = 2,355,590.40 × 942,966.08
  4. Step 4: Simplify right side
    1,706,962.40x = 2,221,241,845,573.63
  5. Step 5: Solve for x
    x = 2,221,241,845,573.63/1,706,962.40
  6. Step 6: Final answer
    x = 1,301,283.41

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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.