Finding the Fourth Proportional to 1,128,353.63, 1,557,155.34 and 619,056
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Solution
The fourth proportional to 1,128,353.63, 1,557,155.34 and 619,056 is: 854,312.28
Step by Step Solution
- Step 1: Write the proportion equation
1,128,353.63 : 1,557,155.34 = 619,056 : x - Step 2: Convert to fraction form
1,128,353.63/1,557,155.34 = 619,056/x - Step 3: Cross multiply
1,128,353.63x = 1,557,155.34 × 619,056 - Step 4: Simplify right side
1,128,353.63x = 963,966,356,159.04 - Step 5: Solve for x
x = 963,966,356,159.04/1,128,353.63 - Step 6: Final answer
x = 854,312.28
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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.