Home / 917,674.60-1,266,355.77-509,802.10

Finding the Fourth Proportional to 917,674.60, 1,266,355.77 and 509,802.10

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Solution

The fourth proportional to 917,674.60, 1,266,355.77 and 509,802.10 is: 703,507.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,674.60 : 1,266,355.77 = 509,802.10 : x
  2. Step 2: Convert to fraction form
    917,674.60/1,266,355.77 = 509,802.10/x
  3. Step 3: Cross multiply
    917,674.60x = 1,266,355.77 × 509,802.10
  4. Step 4: Simplify right side
    917,674.60x = 645,590,830,893.12
  5. Step 5: Solve for x
    x = 645,590,830,893.12/917,674.60
  6. Step 6: Final answer
    x = 703,507.36

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1.5x scale

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.