Home / 1,121,526.60-1,547,499.66-638,063.52

Finding the Fourth Proportional to 1,121,526.60, 1,547,499.66 and 638,063.52

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Solution

The fourth proportional to 1,121,526.60, 1,547,499.66 and 638,063.52 is: 880,409.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,526.60 : 1,547,499.66 = 638,063.52 : x
  2. Step 2: Convert to fraction form
    1,121,526.60/1,547,499.66 = 638,063.52/x
  3. Step 3: Cross multiply
    1,121,526.60x = 1,547,499.66 × 638,063.52
  4. Step 4: Simplify right side
    1,121,526.60x = 987,403,080,258.40
  5. Step 5: Solve for x
    x = 987,403,080,258.40/1,121,526.60
  6. Step 6: Final answer
    x = 880,409.86

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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.