Home / 1,186,281.55-1,637,068.59-642,417.35

Finding the Fourth Proportional to 1,186,281.55, 1,637,068.59 and 642,417.35

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Solution

The fourth proportional to 1,186,281.55, 1,637,068.59 and 642,417.35 is: 886,535.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,281.55 : 1,637,068.59 = 642,417.35 : x
  2. Step 2: Convert to fraction form
    1,186,281.55/1,637,068.59 = 642,417.35/x
  3. Step 3: Cross multiply
    1,186,281.55x = 1,637,068.59 × 642,417.35
  4. Step 4: Simplify right side
    1,186,281.55x = 1,051,681,257,170.69
  5. Step 5: Solve for x
    x = 1,051,681,257,170.69/1,186,281.55
  6. Step 6: Final answer
    x = 886,535.96

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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.