Home / 1,225,168,417.65-1,690,875,354.96-696,611,600.45

Finding the Fourth Proportional to 1,225,168,417.65, 1,690,875,354.96 and 696,611,600.45

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Solution

The fourth proportional to 1,225,168,417.65, 1,690,875,354.96 and 696,611,600.45 is: 961,405,281.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,168,417.65 : 1,690,875,354.96 = 696,611,600.45 : x
  2. Step 2: Convert to fraction form
    1,225,168,417.65/1,690,875,354.96 = 696,611,600.45/x
  3. Step 3: Cross multiply
    1,225,168,417.65x = 1,690,875,354.96 × 696,611,600.45
  4. Step 4: Simplify right side
    1,225,168,417.65x = 1,177,883,387,171,693,312
  5. Step 5: Solve for x
    x = 1,177,883,387,171,693,312/1,225,168,417.65
  6. Step 6: Final answer
    x = 961,405,281.27

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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.