Home / 712,565.84-983,356.77-406,636.13

Finding the Fourth Proportional to 712,565.84, 983,356.77 and 406,636.13

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Solution

The fourth proportional to 712,565.84, 983,356.77 and 406,636.13 is: 561,166.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,565.84 : 983,356.77 = 406,636.13 : x
  2. Step 2: Convert to fraction form
    712,565.84/983,356.77 = 406,636.13/x
  3. Step 3: Cross multiply
    712,565.84x = 983,356.77 × 406,636.13
  4. Step 4: Simplify right side
    712,565.84x = 399,868,391,362.10
  5. Step 5: Solve for x
    x = 399,868,391,362.10/712,565.84
  6. Step 6: Final answer
    x = 561,166.94

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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.