Home / 1,038,501.40-1,557,752.10-407,435.80

Finding the Fourth Proportional to 1,038,501.40, 1,557,752.10 and 407,435.80

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Solution

The fourth proportional to 1,038,501.40, 1,557,752.10 and 407,435.80 is: 611,153.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,501.40 : 1,557,752.10 = 407,435.80 : x
  2. Step 2: Convert to fraction form
    1,038,501.40/1,557,752.10 = 407,435.80/x
  3. Step 3: Cross multiply
    1,038,501.40x = 1,557,752.10 × 407,435.80
  4. Step 4: Simplify right side
    1,038,501.40x = 634,683,973,065.18
  5. Step 5: Solve for x
    x = 634,683,973,065.18/1,038,501.40
  6. Step 6: Final answer
    x = 611,153.70

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.