Home / 2,153,436.76-2,971,875.45-1,186,566.90

Finding the Fourth Proportional to 2,153,436.76, 2,971,875.45 and 1,186,566.90

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Solution

The fourth proportional to 2,153,436.76, 2,971,875.45 and 1,186,566.90 is: 1,637,535.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,153,436.76 : 2,971,875.45 = 1,186,566.90 : x
  2. Step 2: Convert to fraction form
    2,153,436.76/2,971,875.45 = 1,186,566.90/x
  3. Step 3: Cross multiply
    2,153,436.76x = 2,971,875.45 × 1,186,566.90
  4. Step 4: Simplify right side
    2,153,436.76x = 3,526,329,039,892.61
  5. Step 5: Solve for x
    x = 3,526,329,039,892.61/2,153,436.76
  6. Step 6: Final answer
    x = 1,637,535.45

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Double scale
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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.